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About George Callahan
Cast
Crew
Red Light
Screenplay
The Babe Ruth Story
Screenplay
Bunco Squad
Screenplay
The Red Dragon
Writer
The Jade Mask
Writer
Charlie Chan in The Chinese Cat
Story
Black Magic
Screenplay
The Scarlet Clue
Writer
Charlie Chan in the Secret Service
Writer
The Shanghai Cobra
Screenplay
Dark Alibi
Screenplay
Step by Step
Story
Adventures of Kitty O'Day
Screenplay
Prisoners in Petticoats
Story
Behind the Mask
Screenplay
Captain Tugboat Annie
Writer
This Island Earth
Screenplay
The Shadow Returns
Screenplay
The Long Shot
Story
Call of the Jungle
Screenplay
I'll Get You for This
Screenplay
Flight to Hong Kong
Screenplay
Flight to Hong Kong
Story
The Shanghai Cobra
Original Story