November 21st
- 1931 – Frankenstein went to theaters.
- 1937 – Ingrid Pitt was born.
- 1939 – Guy N. Smith was born.
- 1941 – Soul of Shan Hai Huan first aired on the radio.
- 1942 – Al Matthews was born.
- 1944 – Harold Ramis was born.
- 1955 – Les Diaboliques went to theaters (US).
- 1964 – Leah Bodine Drake died, age 49.
- 1964 – Onibaba went to theaters (Japan).
- 1966 – The Witches went to theaters.
- 1966 – Dark Shadows, Episode 106 first aired on television.
- 1967 – C. M. Eddy, Jr. died, age 71.
- 1988 – Robert Bright died, age 86.
- 1990 – Initiation: Silent Night, Deadly Night 4 was released direct to video.
- 1990 – Predator 2 went to theaters.
- 2007 – The Mist went to theaters.