Film One: Forces of Nature. (Yes, I know, it has Ben Affleck in it. But this was six years ago, before there was any such film as Gigli.) I bought this movie back just after it came out on video (previously viewed, so it was something like $5) just for the ending. The ending often makes me forget the rest of the film that preceded it; it's not just a satisfying ending, but it makes me think about what I believe about relationships.
It's also interesting to look at. Some of the camera work makes it look more like a really stylised commercial than a film. You can tell that the director had a lot of fun with it. (Okay, and it's just good escapism, because I've seen it so many times. I needed something that wasn't going to take too many brain cells, because I was just entirely drained after having a very long day. And so I watched a comfort movie and drank tea.)
Any suggestions for other movies about weddings I should watch in the next less-than-two months? (And now, in the half an hour before I go to bed, I'm going to finish reading through the primary sources that I wanted to check out, to round out my third chapter.)