The Sixth Sense
The Sixth Sense features one of the most popular twists of all time when Cole (Haley Joel Osment) delivers the most ominous line in cinema history: "I see dead people." As it turns out, Dr. Malcolm Crowe (Bruce Willis) has been dead all along, killed by the vengeful patient Vincent Grey in the film's opening. If you pay close attention, you might notice a variety of clues alluding to this—look for the color red.
The Shawshank Redemption
In a surprising turn of events, Andy Dufresne (Tim Robbins) was innocent all along. Andy had been planning his escape since the day he entered prison. It took him two decades to chip away at the wall with a small rock hammer, which allowed him to access the prison's sewage system, where he crawled through the pipes to freedom.