The document discusses the differences between independent and mainstream cinemas. Independent cinemas typically have lower budgets and show more serious, niche films to educated audiences, while mainstream cinemas have higher budgets, show blockbuster films with famous actors to wide audiences, and can afford more advertising. The document also discusses strategies for marketing and distributing a film to make it successful as a mainstream feature, such as getting funding from a major production company, using viral and push advertising, and having an initial cinema run before releasing on DVD and the internet.