He was dead the whole time! It was all in her imagination! If you're worried about spoilers, look away. No one could have predicted any of these famously surprising plot twists...
If you happen to like Boston accents, The Departed will keep you entertained on the dialogue alone. At the end of the movie, Colin seems thrilled to be done with everything, but Sean Dignam shows up and puts an end to him for good.
Natalie Portman and Mila Kunis play rival ballet dancers with a strange connection, and pair performed expertly for one of the most haunting twist endings ever. After Nina stabs Lily, she goes out to perform Swan Lake, but it is revealed that Lily was a hallucination all along and Lily has actually stabbed herself. It is unclear whether she dies on stage, but she knows the performance was her best yet.