I've seen surprisingly few films which fit this theme, there are plenty of films with the odd scene in though.
- Dead Ringers (1988)
- Doc Hollywood (1991)
- The Elephant Man (1980)
- Flatliners (1990)
- Good Will Hunting (1997)
- Halloween II (1981)
- A Nightmare on Elm Street 3: Dream Warriors (1987)
- One Flew Over the Cuckoo's Nest (1975)
- Re-Animator (1985)
- Shutter Island (2010)