I, Monster
- Rok: 1971
- Kraj: United Kingdom
- Gatunek muzyczny: Horror, Sci-Fi
- Studio: Amicus Productions, British Lion Film Corporation
- Słowo kluczowe: based on novel or book, mad scientist, victorian england, murder, doctor, jekyll and hyde, split personality, killing a cat
- Dyrektor: Stephen Weeks
- Odlew: Christopher Lee, Peter Cushing, Mike Raven, Richard Hurndall, George Merritt, Kenneth J. Warren