The roles in creating a film

Writer: the writer of a film is the person that writes the scripts and everything to do with the bare bones of films so like the story of the film and what all the actors are going to say.

Producer: Producers plan and coordinate various aspects of the film production, such as selecting script, coordinating writing, directing and editing, and arranging financing. One example of a producer is George Lucas for the Star Wars movies. 

Casting director: The casting director is the person that is responsible for assigning roles in the films

Director: A person who supervises the actors and other staff in a film, play or similar production. 

Film finance: Film finance is an aspect of film production that occurs during the development stage prior to pre-production, and is concerned with determining the potential value of a proposed film.

Camera operator: A camera operator is someone who records images that entertain or inform an audience. Camera operators capture a wide range of material for TV shows, motion pictures, music videos, documentaries and news and sporting events. Most work in the motion picture industry or television broadcasting.  

Editor: a person who is in charge of and determines the final content of a newspaper, magazine, or multi-author book.

Production designer: In a film and television, a production designer or P.D. is the person responsible for the physical overall look of a filmed event such as a TV program, video game, music video, or 

advertisement. Production designers have a key creative role in the creation of motion pictures and televisions.

Marketing: The action or business of promoting and selling products or services, including market research and advertising 

Exhibition: a public display of works of art of items of interest, held in an art gallery or museum or at a trade fair.