Revealing mistake: At the end of the movie, when Ben stakes vampire Susan in the heart, she throws her head back in pain and you can see her real teeth behind the fake vampire teeth.
Salem's Lot (1979)
1 revealing mistake
Directed by: Tobe Hooper
Starring: James Mason, Bonnie Bedelia, David Soul, Lance Kerwin
Visible crew/equipment: After dinner at Susan's parents' house, Ben and Susan leave in Ben's car, and then we see a brief conversation between Susan's parents discussing Ben. Throughout the conversation you can see a microphone at the bottom of the screen picking up their lines. (00:21:23)
Straker: Ciao, Constable.
Constable Parkins Gillespie: Chow?
Straker: Ciao. It's a familiar Italian expression meaning goodbye.
Constable Parkins Gillespie: I didn't know you were Italian.
Straker: I'm not. The word is.
Trivia: During filming, actor James Mason jokingly referred to Lance Kerwin and David Soul as "Lanski and Hutch".