Jake Gyllenhaal plays a history professor whose life gets turned upside down when he finds his identical double in a movie and decides to find out more...
Despite its mainstream lead, this is an arthouse movie. And a boring one unfortunately... It's hard to describe why without spoilers - it is one of those movie that needs analysis during and after viewing to make sense. So I won't go into that kind of analysis to avoid the spoilers.
Watch it if you like slow, enigmatic movies about one's self and self perception. But don't expect too much - just because it is artsy doesn't make it deep and meaningful... The concept is really hard to keep interesting for even a mere 90 minutes. Maybe a 30 minute short would have been more suitable.