The best part of this movie is its parsi flavour and ambience. Thats different to begin with. I cant think of many movies that have gives you look into parsi household although its not a typical parsi house/family.
Second is the story and how it proceeds. Its totally confusing in the first half. It keeps you guessing and makes you wonder why the hell I am watching this movie. The cloud begins to opens up only in the second half. That keeps you glued on the seat.Thats somewhat different- indiffernce to apt attention!!
Third, it is a English bollywood movie with mainstream actors (not the likes of rahul bose and etc) ... thats different
fourth is the acting of Boman Irani. He overshadows all....even the great Naseeurdin shah- partly because Naseerudins role is rather small (and somewhat unimportant) and ofcourse saif ali who was not that impressive!
Would recommend you to watch the movie.