6. Halloween 5
The Ending: Michael Myers has been caught, and is locked inside a police cell at the sheriff's station, when a mysterious figure dressed all in black shows up, blasts the cell open and murders everyone with a machine gun. Myers gets broken out, and the movie promptly ends.
Why It's Infuriating: Firstly, it's horrendously unsubtle sequel bait, and in its mysteriousness, damn-near begs folks to tune in for part six to find out who this mysterious figure was. Secondly, it doesn't make a lot of sense; who is this figure? Why are they helping Michael? Though we do eventually get some answers in the next movie, would it not have been smarter to at least give us a
hint this time around, such that we can actually have something to talk about with our buddies? Instead, most were just left confused and annoyed.