Definitions

Production

Idea-> development -> script

The Production process begins with an idea. The producer develops the idea into a script on which the film will be built. To gain funding, it's helpful to have a cast investors will feel comfortable putting money into i.e. big name celebrities. The producer must also find a director they think will put a positive spin on the project and direct in a style they're looking for. Once they have assembled all these, they can move on to distribution.

Distribution
Distribution is about releasing films in the market place and giving them the greatest chance at success with the public. Producers want their movie to be at the top of the box office for as long as possible. A distributer is assigned to a movie and it is their job to get it out into the world. A distributer must feel confident that they can make back the money they put in to a project. Having a well renowned studio, director or actor can massively improve the chances of getting a good distribution deal.

Exhibition
The exhibition stage of a movie is its release to a group of people. This could be at a film festival, test screening or a premiere. At this stage, the film is out for the world to see.