The test screening audience for Star Wars could have prevented many of the most futuristic gadgets of today, and the real-life Citizen Kane was so nearly cinema's greatest enemy. Imagine that...
The world of film is serious business. Would global warming have spiralled out of control without Walt Disney's input? Would a happy ending to Casablanca have led to a more prejudiced world?
In Imagine that... Film young historian Michael Sells tells the stories behind the most influential films and how they might have changed the world.