I always felt like this film didn't quite live up to its promise, particularly because the film it was adapted from called Open Your Eyes did a better job with the psychological drama than the big budget remake despite Cameron Crowe's cinematography in Vanilla Sky edging out the original.

I always place this film in the lower end of one of my favorite genres of film that I loosely refer to as the "what is reality?" genre. On that, the premise of it is more interesting than the film itself and outclassed by more bizarre films in the same space that makes you question reality like The Science Of Sleep or Mulholand Drive and even by some more popular films like Memento or Fight Club. It's worth a watch, but it's hard to see this film as much other than a missed opportunity to be something more. At least it introduced us all to Penelope Cruz.