There's a very sensible theory going round that any movie can be improved by adding zombies. I'd have to agree, if only because I don't want to imagine The Curse of the Screaming Dead without them.

Some people say that thanks to this theory there are too many zombie movies now days, which is absolutely crazy. It's like complaining that there are too many movies of comparable quality to Citizen Kane because we're in the midst of a trend of writing brilliant scripts.