The game is actually not that bad; got it for christmas and enjoyed it even though the German voices are not always what you might want to call inspired - but hey, Til Schweiger is not the greatest actor around and he did a decent job. The graphics are quite nice to look at, the humour is quite funny at points. Some people even claim the game is better than the movie (which I haven't seen)
For a movie tie-in, I think the game is a lot better than I expected.