This film is kind of odd and it feels like horror and comedy are clumsily combined, but I think that's the point. It shows the massive contrast of human behaviour, the stupidy of war and takes you from slapstick comedy to tears in the next scene. It falls down on believability and I think the comedy would work better if more subtle, but I think the slapstick style is what's intended. Either way you kind of need to see it and had everyone talking about it afterwards.