Here are the key terms with definitions:
Production - The process of making or creating a film. It includes development, pre-production, principal photography, post-production and distribution.
Subsidiary - A company that is owned or controlled by a parent company.
Distribution - The process of making a film available for viewing by an audience. It includes theatrical exhibition, home video, television broadcast, and digital delivery.
Marketing - Promoting and selling a film to an audience. It includes advertising, publicity, trailers, posters, etc.
Exhibition - Showing a film to an audience, such as in movie theaters.
Vertical Integration - When a company owns different parts of the production and distribution