Continuity mistake: When Robert Blake and his accomplice take the father and son to the basement, Blake pulls the string on a hanging lamp and the room becomes fairly bright. A moment later, Blake's accomplice pushes the father into the same room, which is now significantly less well lit, even though the same hanging light is still on.
In Cold Blood (1967)
Plot summary
Directed by: Richard Brooks
Starring: John Forsythe, Robert Blake, Scott Wilson, Paul Stewart
A prominent family in a sleepy Kansas town are murdered by two criminals. The film follows the effects of the killings on the town of Holcomb and also taps into the terrible, pathetic life of of one of the killers, Perry Smith.
Sally
More mistakes in In Cold Blood
Reporter: I see, the hangman's ready. What's his name?
Alvin Dewey: We the People.