Being a classic movies buff this list could get quite long so I will just name a few of my favorites in black and white:
12 Angry Men
On the Waterfront
Mr Smith Goes to Washington
Little Caesar
Days of Wine and Roses
Yankee Doodle Dandy
The Miracle Worker
White Heat
Marty
All About Eve
The Grapes of Wrath
Stalag 17
To Kill a Mockingbird
Some Like it Hot
Double Indemnity
Like I said those are just some of my favorites in black in white I don't even want to start on some of the classic color movies I could be here for days.