Lack of good storyline.

The film was still a fun one that will make you laugh and have you leaving the theater feeling like you just stole something valuable and got away with it.

Fun premise, good actors, bad writing. This film seemed to have potential at the beginning but it quickly devolves into a trite action film. Ultimately it's very boring.

All of these films share one commonality, that being a kind of emotional center that humanizes a cast of monsters.