This was a horrible movie. It seemed to have nothing but head shots of two people talking about their relationship, which I found incredibly boring. The bizarre moving backwards in time made it incomprehensible as well - Memento made moving backwards a key part of the movie, whereas here it seemed to be something purely aimed at giving the art house crowd something to talk about. I saw it in the theater, and was so bored and confused that I walked out (with my date) half an hour in.
