A fun ride overall, but Overlord's main weakness is that it can't seem to decide whether it wants to be an action movie or a horror movie. Granted, there can be, and often is, some overlap, but that doesn't seem to happen here. Rather than blend the two elements, Overlord often swings from action sequences where soldiers are fighting Nazis and Nazis only, to a few scenes where we get zombies--but not a lot of scenes of soldiers fighting zombies. This is where the film fell short for me. I wanted a lot more zombie involvement. Not a bad film by any means, it's definitely worth the price of admission, but it doesn't have the legs to go much beyond that.