This movie was great for the first 35 minutes. After that guy starts prancing around the stage the movie quickly goes downhill, oh and lets not forget the final act which is just one big Bentley ad, dont get me wrong i love that car. If i was in a zombie apocolypse i would get a Bentley. Unfortunately that doesnt make for a good plot line.
EDIT: and no it wouldnt make a very good game, because it wouldnt be anything more than a bad FPS/zombie game with terrible vehicle sections.