I understand what everyone's saying, but the one thing that makes me wonder is: if he's alive, why aren't they giving him medical attention? Even if they think he's a criminal, the police wouldn't leave him there to suffer or to die, surely. I've always wondered about the ending of the film, and I've never been able to come to an firm conclusion. If I had to say either way, my guess would be that Alex is dead, and his reaction at the end when the police are in the apartment is meant to represent him having a kind of afterlife expeerience: even though he's dead, he's satisfied to know that he's won the battle over the money and that even though he won't be around to spend it, it still means that his other flatmates never managed to get it all to themselves in the end either. Of course, the thing that would go against that view is that the film hasn't contained any 'unreal' elements before then - eg. fantasies, dream scenes - so for the film to break with realism only at the end would seem inconsistent with the rest of the movie. So I can't say for sure either way; there is evidence to support both sides of the argument. Does anyone know if the writer and director have ever commented on this issue? Or is it something they wanted to be deliberately ambiguous?