I generally have always had a hard time watching Black and White Movies but the ones that stand out are: Inherit the Wind Guess Who's Coming to Dinner 12 Angry Men Comedies Abbot and Costello The Stooges The Marx Brothers Rocket River
Dr. Strangelove or: How I Learned to Stop Worrying and Love the Bomb Stranger than paradise Elephant man Branded to kill ...just off the top of my head
Casablanca, my all time favorite movie. City lights. M. Almost anything done by Kurosawa. 7 samurai, Yojimbo, Sanjuro.
ditto on Kurasawa Man of the Century modern old world flick My Man Godfrey (the one w/William Powell as opposed to Niven's) The Third Man
I just posted Rumblefish in the other thread and I will post it here. I does have a tiny bit of color though. Under The Cherry Moon w/ Prince
Other than the ones already mentioned: sunset blvd psycho EDIT: one thing that has always bugged me is how nowadays a lot of my friends and younger people (heck i aint even old) refuse to watch movies because they arent in color. I tried to get my friend to watch dr strangelove a few weeks back but he wouldnt since it was black and white and "probably hate cheesy special effects" he ended up watching a really crappy movie instead and it just burns me up.
A lot of good ones already on there. Marx Brothers, Stranger Than Paradise, and Dr. Strangelove... being among the best. Here is a list of other great ones. The Miracle of Morgan's Creek Treasure of the Sierra Madre The Man Who Shot Liberty Valance Captain Blood The Seahawk Sullivan's Travels Marie Antoinette(The movie is only so-so, but Robert Morley's performance makes the movie more than worthwhile) A Face in the Crowd Mr. Smith Goes to Washington Harvey The Lost Weekend It Happens Every Spring Shut My Big Mouth Polo Joe Alibi Ike Modern Times City Lights Gold Rush The Bank Dick Never Give a Sucker an Even Break My Little Chickadee You Can't Cheat an Honest Man The Dawn Patrol Philadelphia Story Alfred Hitchcock movies The Flame and the Arrow (the movie isn't the best, but the stunts and swashbuckling by its star are top notch.)