Job Roles Within Commissioning

Producer - Admin, filming and crew
Executive Producer - don't do anything(sometimes the star of the film, Mark Wahlberg)
 Directors - (a person that controls the script) creative vision of the film, taking cues from the director, once script has been submitted the director is in control of the script
Script Editors - identify problems with the script(add subtract scenes when necessary) where it should be stronger, where it could be better
Agents - find work for actors and writers, someone who works in an industry, knows the legal ramifications(cannot represent yourself) organize the contracts and have relationships with commission agents and pitch their client to the most fitting, the agent does not get paid unless they are finding work for their client
Writers - solo writer(free lance) writing teams, writers signed on to a specific company(could be tweaking script or changing it, not the most efficient way to write a film or TV show, writing to a formula that hasn't been set) vast majority are free lance
Editors

Commissioning Bodies (people that produce a script)
Corporations (such as the BBC, can give up and coming writers a chance to air their script) these scripts can be downloaded from their website and read by the public, the BBC then monitors its feedback)
Indeoendant production complaises -
Independant directors
Organizations - BBC writing room, the writers guild of great Britain
Competitions - competitions can be won, this would gather the writer some popularity and recognistion
The screen writing process - once in production the script moves to shooting format