I'm actually in the process of doing this. My dad always enjoyed the colorized movies, and he had recorded quite a few which had never been released on video. I have a list of about 315 films which have been colorized. Here are the colorized movies that I have, about 44, and I'm in the process of preserving them:

Across the Pacific

Action in the North Atlantic

Airforce

Allegheney Uprising

Angels with Dirty Faces

Arsenic & Old Lace

Back to Bataan

Bataan

Battle Circus

Battleground

Captain Blood

Casablanca

Charge of the Light Brigade

Command Decision

Dark Command

Dark Victory

Desperate Journey

Destination Tokyo

Edge of Darkness

Fighting Seabees

Flying Tigers

Fort Apache

Gunga Din

In Old Calidornia

Key Largo

Longest Day

Maltese Falcon

Objective Burma

Passage to Marseille

Rio Grande

Roaring 20s

Sands of Iwo Jima

Sea Hawk

Sergeant York

Tall in the Saddle

The Fighting Kentuckian,

They Died with their Boots On

They were Expendable

To Have and Have Not

Treasure of the Sierra Madre

Wake of the Red Witch

Waterloo Bridge

Big Sleep