Tied for the best movie I have ever seen

This is one of the few movies I've ever seen where the whole audience broke into spontaneous, loud applause a third of the way in.

It's funny, it's tense, it features two great performances from two actors and the director expertly creates a web of odd tension where you actually don't know what is happening for the majority of the run time.

It really made me laugh, but for some moments I was tearing up because I could relate so much.