Revealing mistake: At the very end, a bat flying out of the mist toward the camera was intended to imply that Barnabas had taken bat form and could thus be around for a sequel. But through the haze, Barnabas can still be seen lying on the floor when the bat flies past. (01:36:25)

House of Dark Shadows (1970)
Directed by: Dan Curtis
Starring: Grayson Hall, Jonathan Frid, Roger Davis, Kathryn Leigh Scott
Revealing mistake: When Willie is hit in the back by the bolt from Jeff's crossbow, the outline of the packing material used to catch the arrow is visible under his coat. (01:32:00)
Revealing mistake: Barnabas lives by candlelight in Collinwood's "Old House," a 200-year-old mansion supposedly never wired for electricity. But just before Barnabas throws Willie down the stairs, there's a light switch visible on the wall behind them. (01:04:30)
Professor T. Eliot Stokes: Julia! You're in love with him! Well, I pity you.
Dr. Julia Hoffman: Barnabas, your face.
Professor T. Eliot Stokes: If I told the police that the creature they're looking for lives by night, and sleeps in a coffin by day... they might question my sanity.




