Apollo 13 probably should've made my list, considering how much I like to watch it (and yeah, I totally forgot South Park as well. Probably because I don't really watch the show any more, even though I love the movie). Good that Trainspotting showed up, that one's a keeper.
I know that I should've included Mononoke, but when it comes to Ghibli I tend to stick closer to the Spirited Away/How's Moving Castle side of things, so wrong decade there.
And am I the only one that doesn't like American Beauty? Kevin Spacey's great performance aside, it just struck me as so incredibly hollow and smug that I sorta wanted to punch the poster by the end of it.