The Film Producer
The film producer is usually considered to be the person in charge of the entire film. The producer plans the production, hires key staff, organises financial backing and budgets, distribution, etc.
Film producers need to have strong organizational skills and good business sense. As well as making sure the film gets made on time and budget, they need to make sure it has an audience and will be profitable. There are exceptions to this rule (not all films are expected to turn a profit), but the producer is usually the business head of the project.