Trivia: In the scene of Missy's funeral, Stephen King plays the priest.
Trivia: The town in Iowa that the movie was filmed in was Dyersville. The actual house and farm used in the movie are about 2 miles outside of town and are open to the public.
Trivia: The sound of Vigo growling is exactly the same growl that the terror dogs from the first Ghostbusters make.
Trivia: In the dream sequence of the asylum where Amanda Krueger is trapped by the hundred maniacs one of the maniacs looks remarkably like Freddy. Presumably this was his biological father. (Of course this man was played by Robert Englund, the actor who plays Freddy)
Trivia: Sean Connery was considered for the part of Hap, which eventually went to Audrey Hepburn.
Trivia: Belushi's friend and frequent co-star Dan Aykroyd hates this film. His most famous quote: "I have witches working now to jinx the thing. I hope it never gets seen, and I am going to hurl all the negative energy I can and muster all my hell energies against them. My thunderbolts are out on this one, quite truthfully." Aykroyd learned that J.T. Walsh, who had appeared in "Wired," had been cast in the film "Loose Cannons," in which he was due to star. He had him fired.
Trivia: In the open-matte print, right after the credits, the support beams of the movie lot walls are visible, painted in blue to simulate the sky. In the theatrical version and the current Disney+ streaming movie's original aspect ratio (bottom picture), one can still see the beams for a split second after the postman puts the letter in the mailbox (though there's no way here to identify them as lot walls).