Not enough... only Khamoshi, Mr and Mrs 55, Garam Hawa, Do Bigha Zamin, and Uski Roti plus Bengali films (Goopy Gyne Bagha Byne, Charulata, Devi) and Sant Tukaram (Marathi from 1936).
Older films (regardless of if they're color or B&W) don't hold my attention as easily so I have to be in a concentrated mood for them... or be required to watch them lol (many of mine I had to see in college)
62