Nobody loves summer blockbusters more than we do. (We've already seen 'Star Trek Into Darkness' multiple times.) Occasionally though, we need a movie with substance rather than something filled with special effects and thunderous explosions. Intellectually speaking, it's the difference between fresh popcorn and the stuff that comes out of a microwaveable bag, you know?

But, sometimes dense, complicated movies leave us wondering,"What the heck did we just watch?" In other words, just because a flick is packed with multiple layers of meaning, that's no guarantee it'll actually make sense. So in that spirit, check out the 10 most confusing movies of all-time below.