Tape

Tape is a really smart movie. It debats the ideas of principles and perceptions as your own perception is constantly changed as the story (or should I say dialogue) unfolds. This movie is filled with layers just like it's characters (Ethan Hawk is incredibly funny b-t-w)and the ending adds a superb twist. Don't worry about the somewhat overly artsy camera angles in the beginning, you get used to it (and even start to enjoy it).