This game is fun, I don't know why gamespot gave it such a bad score
You get to play as all of the main characters, and you have to get each one of them away from the site of the robbery to the warehouse(except for the ones who die). You play the flashbacks and the parts they only talk about in the movie, i.e. inside the diamond store, Mr. Blue's death, Mr Blonde kidnapping the cop, Mr. Pink trying to get the stones back from where he had hidden them...
While running away(from the site of the robbery), you can choose to be a pro and get hostages, disarm police officers and get out without killing anyone or you can be a psycho and shoot everyone on your way till you get to the end of the level.
And the soundtrack(when you're inside a car) is the same of the movie, which just makes it even better.