Samurai Cop (1991) This movie is just so incredibly bad, it's fantastic !

Rubber - A sentient tire rolls around causing destruction.

Iron Sky - Moon Nazis

The Day After Tomorrow. It is exquisitely bad. In the third act, they run out of ways to make weather the bad guy and randomly drop in a pack of wolves to attack everyone. It’s a hilariously entertaining disaster movie

Plan 9 From Outer Space redefined bad movies for me. It's inexcusably bad. Many bad movies are really just doing the best they can with the skills of the cast and crew. But the filmmakers of Plan 9 From Outer Space just keep making decisions that are so much worse than they have to be. It's amazing to watch.

Probably Sucker Punch. Has nothing to do with a crush I may or may not have on Jena Malone, and exclusively to do with the straight-played, over-the-top ridiculousness of the entire film.