Thursday, May 12, 2011

Screenwriting


Screenwriting is the art and craft of writing scripts for filmtelevision or video games.

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[edit]Screenwriting in the entertainment industry

The act of screenwriting takes many forms across the entertainment industry. Often, multiple writers work on the same script at different stages of developmentwith different tasks. Over the course of a successful career, a screenwriter might be hired to write in a wide variety of roles.
Some of the most common forms of screenwriting jobs include:

[edit]Spec script writing

Spec scripts are feature film or television show scripts written on speculation, without the commission of a studio, production company, or network. The spec script is a Hollywood sales tool. The vast majority of scripts written each year are spec scripts, but only a small percentage make it to the screen.[1] A spec script is usually a wholly original work, but can be an adaptation of an existing source.
In television writing, a spec script is a sample teleplay written to demonstrate the writer's knowledge of a show and ability to imitate its style and conventions. It is submitted to the show's producers in hopes of being hired to write future episodes of the show. Budding screenwriters attempting to break in to the business generally begin by writing one or more spec scripts.
Note that while writing "spec scripts" is part of any writer's career, the Writers Guild of America forbids members to write "on speculation." The distinction is that a "spec script" is written as a sample by the writer on his or her own; what is forbidden is writing a script for a specific producer without a contract.

[edit]Feature assignment writing

Scripts written on assignment are screenplays created under contract with a studio, production company, or individual. Assignment scripts are generally adaptations of an existing idea or property owned by the hiring company,[2] but can also be original works based on a concept created by the writer or producer. Because assignments are created for hire, the writer typically has less creative freedom than on a spec script, and must meet specific criteria dictated by the producer.

[edit]Rewriting and script doctoring

Most produced films are rewritten to some extent during the development process. Frequently, they are not rewritten by the original writer of the script.[3] Many established screenwriters, as well as new writers whose work shows promise but lacks marketability, make their living rewriting scripts.
When a script's central premise or characters are good but the script is otherwise unusable, a different writer or team of writers is contracted to do an entirely new draft, often referred to as a "page one rewrite." When only small problems remain, such as bad dialogue or poor humor, a writer is hired to do a "polish" or "punch-up".
Depending on the size of the new writer's contributions, screen credit may or may not be given. For instance, in the American film industry, credit to rewriters is given only if 50% or more of the script is substantially changed.[4] These standards can make it difficult to establish the identity and number of screenwriters who contributed to a film's creation.
When an established, successful writer is called in to rewrite portions of a script late in the development process, they are commonly referred to as script doctors. Prominent script doctors include Steve ZaillianWilliam GoldmanRobert TowneMort NathanQuentin Tarantino and John Truby.[5]

[edit]Television writing

freelance television writer uses spec scripts or their previous credits and reputation to get contracted by an existing tv show to write one or more episodes. After the episode is written, the teleplay is submitted to the network and rewriting or polishing may be required. Subsequent drafts of the script may be done by the freelancer or by the show's staff.
A staff writer for a television show generally works in-house writing and rewriting episodes for the show. Staff writers - often given other titles, such as story editor, or producer - work both as a group and individually on episode scripts to maintain the show's tone, style, characters, and plots.[6]
Television show creators, also known as show runners, write the pilot episode and bible of a new television series. They are responsible for creating and managing all aspects of a show's characters, style, and plots. Frequently, a creator remains responsible for the show's day-to-day creative decisions throughout the series run.

[edit]Writing for soap operas

The process of writing for soap operas is different than that used by prime time shows, due in part to the need to produce new episodes five days a week, fifty-two weeks a year. In one example cited by Jane Espenson, screenwriting is a "sort of three-tiered system":[7]
a few top writers craft the overall story arcs. Mid-level writers work with them to turn those arcs into things that look a lot like traditional episode outlines, and an array of writers below that (who do not even have to be local to Los Angeles), take those outlines and quickly generate the dialogue while adhering slavishly to the outlines.
Espenson notes that a recent trend has been to eliminate the role of the mid-level writer, relying on the senior writers to do rough outlines and giving the other writers a bit more freedom. Regardless, when the finished scripts are sent to the top writers, the latter do a final round of rewrites. Espenson also notes that a show that airs daily with characters that have decades of history behind their voices necessitates a writing staff without the distinctive voice that can sometimes be present of prime-time series.[7]

[edit]Writing for game shows

Game shows feature live contestants, but still use a team of writers as part of a specific format.[8] This may involve the slate of questions, and even specific phrasing or dialogue on the part of the host. Writers may not script the dialogue used by the contestants, but they work with the producers to create the actions, scenarios, and sequence of events that support the game show's concept.

[edit]Video game writing

With the continued development and increased complexity of video games, many opportunities are available to employ screenwriters in the field of video game design. Video game writers work closely with the other game designers to create characters, scenarios, and dialogue.[9]

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District 9


District 9 is a 2009 science fiction thriller film directed by Neill Blomkamp. It was written by Blomkamp and Terri Tatchell, and produced by Peter Jackson and Carolynne Cunningham. The film stars Sharlto CopleyJason Cope, and David James. The film won the 2010 Saturn Award for Best International Film presented by the Academy of Science Fiction, Fantasy & Horror Films,[3] and was nominated for four Academy Awards in 2010, including Best PictureBest Adapted ScreenplayBest Visual Effects, and Best Editing.[4]
The story, adapted from Alive in Joburg, a 2005 short film directed by Blomkamp and produced by Sharlto Copley and Simon Hansen, pivots on the themes of xenophobia and social segregation. The title and premise ofDistrict 9 were inspired by events that took place in District Six, Cape Town during the apartheid era. The film was produced for $30 million and shot on location in Chiawelo, Soweto, presenting fictional interviews, news footage, and video from surveillance cameras in a part-mock documentary style format. A viral marketingcampaign began in 2008, at the San Diego Comic-Con, while the theatrical trailer appeared in July 2009. Released by TriStar Pictures, the film opened to critical acclaim on August 14, 2009, in North America and earned $37 million in its opening weekend. Many saw the film as a sleeper hit for its relatively unknown cast and modest-budget production, while achieving success and popularity during its theatrical run.

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[edit]Plot

In March 1982 a large alien spacecraft comes to Earth and hovers motionless above Johannesburg in South Africa. After three months, a team enters the ship, discovering a large group of sick and malnourished extraterrestrials, who are then given food, shelter, and health-care on Earth. The aliens, derogatorily referred to by some locals as "prawns", are confined to a government camp inside Johannesburg known as District 9. As time progresses following the settlement of the aliens onto Johannesburg, periodic unrest occurs between aliens and locals.
In the first decade of the 21st century, the South African government hires Multinational United (MNU), a private military company under the direction of its CEO, Dirk Michaels, to relocate the aliens to the new District 10. In August 2010, Wikus van de Merwe (Sharlto Copley), an Afrikaner bureaucrat, is appointed by Piet Smit (Dirk Minnaar), an MNU executive and his father-in-law, to lead the relocation with the serving of illegal eviction notices.
Meanwhile, three aliens (Christopher Johnson (Jason Cope), his son, and a friend), search for alien technology from which they distill a mysterious fluid, storing it in a small canister. Later, while raiding the shack of Christopher's friend, Wikus discovers and seizes the container, which sprays an unidentified substance onto his face. Christopher's friend is subsequently killed by Koobus Venter (David James), a xenophobic soldier leading the operation.
The mysterious fluid makes Wikus ill and begins to turn his DNA and body into those of a "prawn". MNU finds out and they force Wikus to test various alien weapons which only function when used by an alien; he succeeds at using them. The MNU scientists then decide to vivisect Wikus' organs because they are deemed to be worth billions for biotech research, but he overpowers his captors and escapes. Smit lies to the press, saying that Wikus is infected with an alienSTD and is highly contagious. He also sends Venter and his men to capture him.
Wikus finds refuge in District 9 and seeks help from Christopher, who reveals that the canister would allow him to reactivate the dormant mothership and reverse Wikus' mutation. He then reveals the lost command-module hidden under his shack, and agrees to help Wikus if he retrieves the canister from MNU. Wikus agrees and steals weapons from Nigerian arms-dealer Obesandjo and his gang.
Wikus and Christopher break into the MNU offices and successfully retrieve the canister; they flee back to District 9, with MNU forces in pursuit. Outraged by illegal experiments he saw at the MNU headquarters, Christopher tells Wikus that he will need to seek help for the other aliens before curing him. Unfortunately, the trip to the alien planet and back will take three years. Enraged, Wikus attacks Christopher, then hijacks the command module. Soon after takeoff, the craft is shot down and crashes. Venter and his men arrest Wikus and Christopher, but Obesandjo's gang ambushes the MNU convoy, kills the guards, and after an intense firefight, Wikus is taken to Obesandjo, who believes that by eating Wikus' mutated alien hand he will gain the ability to use alien weaponry. Obesandjo's base is then surrounded and besieged by MNU and a firefight ensues.
In the downed command module, Christopher's son activates the mothership and an alien mechanized battle suit which, upon detecting a threat to Wikus, kills Obesandjo and his men before they can butcher Wikus. Wikus takes control of the battle suit and rescues Christopher, shielding Christopher as they run to the command module and killing many MNU men firing upon them. Wikus then aids Christopher's escape by staying behind and holding off the MNU troops in his ailing mechanized battle suit. Wikus kills all the troops except Venter, who cripples his suit and forces it to eject him. He is cornered by Venter, who tells him he plans to execute him to prevent further repercussions. However, a group of aliens surround Venter and tear him to pieces before eating what remains. The mothership leaves Earth with Christopher and his son as Johannesburg's residents celebrate its departure.
A series of interviews and news broadcasts are shown, with people theorizing about Wikus' whereabouts and whether Christopher would return with the intention to retaliate or reconcile. MNU's illegal experiments on the aliens are uncovered and exposed by Fundiswa Mhlanga, Wikus' former trainee, who is incarcerated and awaiting trial. District 9 is completely demolished, with all the aliens having been moved to the new larger District 10 several miles outside the city. Wikus' wife, Tania (Vanessa Haywood), reveals the finding of a metal flower on her doorstep, which gives her hope that her husband is still alive. The film ends with a shot of a "prawn" crafting a similar flower in a scrapyard, strongly implying that it is Wikus now fully transformed.[5]
District 9 Trailer


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Contrast in Film

CONTRAST TRANSFER

   The ability of a film to produce contrast can be determined by observing the difference in density between two areas receiving a specified difference in exposure, as shown in the figure above. However, since the amount of contrast is affected by the level of exposure, a range of exposure values must be delivered to a film to demonstrate fully its contrast characteristics.
   One method of doing this is illustrated in the following figure; this type of exposure pattern is usually produced by a device known as a sensitometer. In this method, a strip of film is divided into a number of individual areas, and each area is exposed to a different level of radiation. In this particular illustration, the exposure is changed by a factor of 2 (50% contrast) between adjacent areas. When considering contrast characteristics, we are usually not interested in the actual exposure to a film but rather the relative exposure among different areas of film. In the figure below the exposures to the different areas are given relative to the center area, which has been assigned a relative exposure value of 1. We will use this relative exposure scale throughout our discussion of film contrast characteristics. Note that each interval on the scale represents a 2:1 ratio. This is a characteristic of a logarithmic scale. When the film is processed, each area will have density values, as shown directly below the area. The amount of contrast between any two adjacent areas is the difference in density, as shown. In this illustration we can observe one of the very important characteristics of film contrast. Notice how the contrast is not the same between each pair of adjacent areas throughout the exposure range: there is no contrast between the first two areas, but the contrast gradually increases with exposure, reaches a maximum, and then decreases for the higher exposure levels. In other words, a specific type of film does not produce the same amount of contrast at all levels of exposure. This important characteristic must be considered when using film to record medical images.


The Variation in Contrast with Exposure
   All films have a limited exposure range in which they can produce contrast: if areas of a film receive exposures either below or above the useful exposure range, contrast will be diminished, or perhaps absent. Image contrast is reduced when a film is either underexposed or overexposed.

 

Contrast in Film

INTRODUCTION AND OVERVIEW

   Contrast is perhaps the most significant characteristic of an image recorded on film. Contrast is the variation in film density (shades of gray) that actually forms the image. Without contrast there is no image. The amount of contrast in an image depends on a number of factors, including the ability of the particular film to record contrast.

   Film can be considered as a contrast converter. One of its functions is to convert differences in exposure (subject contrast) into film contrast (differences in density), as shown below. The amount of film contrast resulting from a specific exposure difference can vary considerably.


The General Relationship between Exposure Contrast and Film Contrast
   The exposure contrast between two areas can be expressed as a ratio or percentage difference, as illustrated above. The film contrast between two areas is expressed as the difference between the density values. The ability of the film to convert exposure contrast into film contrast can be expressed in terms of the contrast factor. The value of the contrast factor is the amount of film contrast resulting from an exposure contrast of 50%. The amount of contrast produced by medical imaging films depends on four basic factors:
(1) type of emulsion,
(2) amount of exposure,
(3) processing,
(4) fog.
   In this section we consider the basic contrast characteristics of film, how these characteristics are affected by the factors listed above, and how contrast characteristics relate to clinical applications.