Dumbest movie,you have ever seen.... (Facepalm stuff...).

I vote ''Nasty Habits'' from the late 70s or early '80s.
The only movie i ever walked out on because it was so freakin' stupid.
It was about some nuns and was supposed to be a comedy.
Close second is the ''Spring Break'' or ''Fast Times At Ridgemont High'' type movies.
Anything ''Benny Hill'' gets an honorable mention here. Just stupid.