Budget: $115,000
Gross: $40,000,000

The original 'Night of the Living Dead' was not just one of the best independent films, but it also still ranks as one of the most genuinely unsettling horrors too. The thrifty film from George A Romero uses chocolate syrup for blood and acquired its soundtrack from a stock music library. The only real blood was supplied by a local butcher who was actually an investor in the film's budget!