In semi-order (and I count sagas/series of movies as one...):

Star Wars
Transformers: The Movie
Matrix
X-Men (but NOT Last Stand)
Kevin Smith's View Askewniverse (Clerks, Mallrats, Chasing Amy, etc...)

Man, that was difficult, I could easily give another 5, or 15...


What, nobody has GI Joe the Movie in their top 5...?