The GUI made it cool
The concept behind this flick is fun, but once things take a serious turn it was really the innovating visuals that kept me into this movie. I love the way they created their "GUI" to try to visualize his obsessive compulsive mind at work. Very neat visuals, interesting story. Dustin Hoffman really shines. People make a big deal about his roles in those Fockers movies, but I prefer this more understated humour.