Great endings

Entertainment Weekly has on their website a photo show of what they call "20 Perfect Movie Endings." Some predictable (Vertigo), some less predictable (Rushmore). If you don't feel like clicking & reading, here they are (I don't think they're ranked):

Sixteen Candles
Vertigo
Once
The Sixth Sense
Dr Strangelove
Cinema Paradiso
Rocky II
Before Sunset
The Seventh Seal
Rushmore
Gone With the Wind
Brokeback Mountain
The 400 Blows
Sideways
Casablanca
About A Boy
The Searchers
Big Night
Facing Windows
One Flew Over the Cuckoo's Nest

Thoughts? Agreements? Omissions?