Revealing mistake: The shadow of a boom mic is seen quickly passing over the knocked over boxes.
Revealing mistake: A heavy wooden crate with several cardboard boxes on it is easily knocked over as Ruth falls against it.
Night Gallery (1970)
2 revealing mistakes in Hatred unto Death - chronological order
Starring: Joanna Pettet, Rod Serling, Larry Watson, Matt Pelto
Since Aunt Ada Came to Stay - S2-E9
Visible crew/equipment: Before Craig finishes speaking with Joanna and puts the car in reverse, a set crew member in a blue shirt is seen in the driver's side mirror.
Rod Serling: For those of you who've never met me, you might call me the under-nourished Alfred Hitchcock.
Trivia: The scene of the spooky castle on the rocky shore was used in episodes of "Gilligan's Island" featuring Vito Scotti as mad scientist Boris Balinkoff.