Plot hole: If the creatures are strong enough to simply burst through the walls, as shown at the end of the film, then the creature upstairs should not have been stopped by the small door that Bozo, the bartender and heroine shut on it to stop it. It was one of the larger creatures as well, so it could have easily gotten through.
Feast (2005)
1 plot hole
Directed by: John Gulager
Starring: Balthazar Getty, Henry Rollins, Krista Allen, Judah Friedlander, Navi Rawat
Continuity mistake: When Tuffy's son is killed, you see his shoe fly by the camera, with his severed foot still inside. Shortly after, when you see the shoe again, it is empty, and simply covered in blood.