I guess I'll forget some.
BBM first and by far, of course. The others in no particular order.
Memento (Hey Katherine, still up there for me, too

)
Stand By MeGood Will HuntingFried Green TomatoesGroundhog Day (I can watch this one again and again and again, and...)
Lethal Weapon 1-4 (Can't help it, even when Mel Gibson is an idiot, lol)
Die Hard 1-4 (Yup, action with humor does it for me)
Butch Cassidy and the Sundance Kid (Leslie's and my "other boys")
Four Weddings And A FuneralAntonia's LineMy Own Private IdahoHonorable mentions to:
East Of Eden
Rebel Without A Cause
The Dark Knight
Still Crazy
Fight Club
The Crying Game
The Sixth Sense
Solino (German Movie)
The Big Chill
Thelma and Louise