What's the most chilling piece of acting I've ever watched?
The scene in "The Godfather, Part II," at the mother's funeral, where it seems that Michael is forgiving Fredo. Then the camera pans up to Michael's dead, black eyes, as he looks at his hitman. The perfect portrayal of evil.
@LiberalLibrarian: Angela Lansbury's entire performance in "The Manchurian Candidate"
@LiberalLibrarian: Laurence Harvey's as well in the same film.