[DFB]

Some of my favorite classic horrors are the old Corman ones like The Pit and the Pendulum, the Masque of the Red Death, the Fall of the House of Usher, etc but there's a lot of good horror from that time period:

What I've watched and liked from the 20's to 1970 by decade

1920's
Nosferatu
The Phantom of the Opera

1930's
Dracula
Frankenstein
The Mummy
The Mask of Fumanchu

1940's
A Picture of Dorian Gray (1945)
The Wolfman

1950's
The Seventh Seal
House of Wax
The Creature from the Black Lagoon
The Fly
House on Haunted Hill

1960's
13 ghosts
The House of Usher (Corman)
Psycho (Hitchcock)
The Innocents
The Pit and the Pendulum (Corman)
The Haunting (1963) - possibly the scariest G-rated movie ever
Carnival of Souls
Phantom of the Opera (Hammer films)
Tales of Terror (Corman)
Tower of London (Corman)
The Birds (Hitchcock)
Kwaidan/Kaidan (Japanese horror, an old ghost story, I loved it)
Masque of the Red Death
The Last Man on Earth (Remake stars Will Smith: I AM LEGEND)
Onibaba (More Japanese horror, but it's a goodie)
Tomb of Lygeria
Night of the Living Dead (Romero)
Rosemary's baby

Hope you enjoy them as much as I did!