Black Friday
- Yıl: 1940
- Ülke: United States of America
- Tür: Bilim-Kurgu, Suç, Korku
- Stüdyo: Universal Pictures
- Anahtar kelime: experiment, gangster, professor, murder, mad doctor, car accident, brain surgeon, hidden loot, brain transplant, hidden money
- Yönetmen: Arthur Lubin
- Oyuncular: Stanley Ridges, Boris Karloff, Bela Lugosi, Anne Nagel, Anne Gwynne, Virginia Brissac