Revealing mistake: When Harry screams through the windshield of a car you can see the actor's mouth and teeth inside of Harry's mouth.
Harry and the Hendersons (1987)
1 revealing mistake
Directed by: William Dear
Starring: John Lithgow, Melinda Dillon, Joshua Rudoy, Margaret Langrick
Continuity mistake: It goes from night to day really quickly as Irene shows up.
Sarah Henderson: Where's the roast?
George Henderson: I'll go get it.
Nancy Henderson: The roast is resting in a shallow unmarked grave in the backyard.
George Henderson: Oh. Well, there's plenty of other stuff.
Dr. Wallace Wrightwood: Are you vegetarians?
George Henderson: Sometimes. It depends on the guest.
Trivia: M. Emmet Walsh plays John Lithgow's father in the movie, even though in real life he's only 10 years older than Lithgow.