Factual error: There is no entry hole in the tree branches covering the pit where the gorilla fell through. A gorilla that size would have punched a large hole through the branches.
Night Gallery (1970)
1 factual error 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.