Black Friday
- Gore: 1940
- Nyika: United States of America
- Genre: Science Fiction, Crime, Horror
- Studio: Universal Pictures
- Keyword: experiment, gangster, professor, murder, mad doctor, car accident, brain surgeon, hidden loot, brain transplant, hidden money
- Mutungamiriri: Arthur Lubin
- Cast: Stanley Ridges, Boris Karloff, Bela Lugosi, Anne Nagel, Anne Gwynne, Virginia Brissac