A commissioned screenplay is written by a hired writer. The concept is usually developed long before the screenwriter is brought on, and often has multiple writers work on it before the script is given a green light.
Feature assignment writing
Scripts written on assignment are screenplays created under contract with a studio, production company, or producer. These are the most common assignments sought after in screenwriting. A screenwriter can get an assignment either exclusively or from “open” assignments. A screenwriter can also be approached and offered an assignment. Assignment scripts are generally adaptations of an existing idea or property owned by the hiring company, but can also be original works based on a concept created by the writer or producer.
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