Trivia: When Adam decides to go back to the bridge to figure out how he and Barbara got back to the house, when Adam steps off the stairs, he ends up in a desert world. In the original scene, after leaving the steps, Adam is transported to a world with gears flying all over the place. Test audiences were confused by this scene so it was changed.
Trivia: In 1990, a script was written for the sequel; it involved the cast of the first film going to Hawaii. Burton and and the cast were set to return, but the cast would only come if Burton was involved. He became to busy with batman returns and eventually gave up on the idea. The script is still owned by The Geffen Film Company till this day.
Trivia: The original script was significantly different from the final film. For example, Beetlejuice himself was initially envisioned as a murderous winged demon who would occasionally take on the form of a short, portly middle-eastern man. And the humor and content was meant to be much darker. The originally climax had the Maitlands trying to save Lydia from being raped by Beetlejuice's true demonic form, as opposed to marrying her as seen in the final film. Tim Burton liked the idea behind the film, but pushed for it to be made more light-hearted and less graphic, and it was subsequently re-written into the film we know today.
Trivia: Alec Baldwin has admitted he didn't really understand or even like the film when it was being made, and actually thought it was going to kill his career. Although he has also said he enjoyed his time on-set, especially working with Michael Keaton. It ended up being a big hit and helped put Baldwin on the map.
Trivia: In one scene, Delia is wearing strangely baggy red pants held up with suspenders. This is actually a sweater that Charles was seen wearing earlier. It was flipped upside-down and repurposed into a pair of pants. This is one of a few instances in the film where Delia is repurposing clothing. Another example is in the first diner scene where the characters are eating Chinese food - in that scene, she's wearing a peculiar headband made of gloves.