1. A film distributor secures placement of a film producer's movie in exhibitors' cinemas, acting as the intermediary between production and exhibition. 2. Major film distributors include Columbia Pictures, Warner Bros., Sony Pictures, Disney, and Universal Pictures. Niche distributors focus on specific audience groups. 3. Case studies show how large media companies like Sony use film distribution, along with other products and services, to gain market dominance through convergence across platforms.