Psycho Twist

You might have the pleasure of watching Psycho (1960), without knowing the twist at the end. How any film lover could make it through life without knowing the big secret, it should scare the living daylights out of you (as it has for generations). SPOILER: when it was revealed that Norman Bates had been pretending to be his mother it set a precedent for horror movies to come. And it turned out to be a prototype for all great modern twists. It’s a film that has a twist that has kept audiences reeling for over 50 years.

FROM: http://thescriptlab.com/