Bad Acting and worse Bad Screenplay

It was OK. I don't see why everyone loves it so much. It wasn't very smart or deep or well-directed.

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 is encouraging that the film ends so strongly.Otherwise, it wouldn't have been a particularly memorable film