The screenplay provides a written blueprint for the entire film making process. The development of a script starts either with a Screenwriter writing a spec screenplay for sale to a production company, or with a Producer commissioning a Screenwriter to write a screenplay based on a concept, a true story, an existing screen work. An example of this would be a cartoon or TV series, or another literary work such as a story, novel, poem or play

An good, interesting, well-written, well structured, and properly formatted screenplay does not always guarantee a good finished film, but, without one, there is almost no possibility of success, however gifted the Director, cast and crew. More experienced Screenwriters and Production companies therefore spend many years developing stories and perfecting screenplays, and many more screenplays are developed than are actually produced.

A new screen writer should develop and new and original script and learn to develop their skill in characters, description and how a story is told. It can be done in many ways whether it is by going writing classes or watching your favorites how sand noting what happens in each episode and how it can help your stories develop.