I'm taking a cinema class this semester, and yesterday (our first class) we watched
Vertigo.
I forgot how much I love Alfred Hitchcock (and his MacGuffins) movies!
Although, being the mature audience that we were, in the scene where Jimmy Stewart pours a frazzled Kim Novak (who just had a terrible nightmare) a shot of brandy and says, "Here, take this. It's just like medicine." -- the entire 400+ audience busted out laughing.