Films! Films! Films!

[eye_of_a_cat]

I am madly in love with Lovefilm, and all DVD-by-post services like it. As would you be if you'd seen the paltry selection in my local Blockbuster, too. People don't just want to rent new releases! They don't! Really they don't! It's not just me!

Anyway, so. I've stacked up quite a few films now, and added a few more from Fred's recommendations thread at Slacktivist, and I was wondering if you fine people had any recommendations for films I might like.

Here's what I've got already:

All About Eve
Batman Begins
Breakfast At Tiffany's
Chinatown
Clueless
Dirty Harry
Double Indemnity
East Is East
Erin Brokovich
Galaxy Quest
Gilda
Hard Candy
Heat
Heathers
His Girl Friday
Key Largo
Little Miss Sunshine
Mean Girls [oh, hush]
Mr and Mrs Smith [the 1941 Hitchcock film, not the recent one!]
North By Northwest
Office Space
Once Upon A Time In America
Out of the Past
Rabbit Proof Fence
Rear Window
Rebel Without A Cause
Repulsion
Roger and Me
Scarlet Street
The Beckoning Silence
The Big Sleep
The Elephant Man
The Firm
The Lady Eve
The Lady From Shanghai
The Maltese Falcon
The Opposite of Sex
The Postman Always Rings Twice
The Village
Touching the Void
Trainspotting
Unbreakable
Unforgiven
V for Vendetta.

Heavy on film noir and 40s/50s/early-60s anything; light on modern comedy and everything that could be described as 'heartwarming'. Any ideas, based on that kind of selection? (Except for Amelie, which I haven't seen and already know I wouldn't like, and am baffled as to why all my friends keep demanding I watch.) I'm on the lookout for good documentaries as well, if anyone's seen anything interesting in that vein.