* ActorAllusion: In ''Amityville II'', a poster for ''Film/{{Rocky}}'' can be seen hanged on a wall. Burt Young, who plays Sonny's father, was a costar in the ''Rocky'' movies.
* ExecutiveMeddling: The decision to make Jodie a StringyHairedGhostGirl instead of a demonic pig, in the wake of Film/TheRing's success.
* HeyItsThatGuy: The house is haunting [[Film/{{Superman}} Lois Lane]] in the first movie.
** [[Franchise/{{Rocky}} Pauly]] is the abusive father of the Montenelli family in the second movie.
** Meg Ryan appears briefly in the third movie.
** Seventh movie has [[{{Shaft}} Richard Roundtree]] and [[{{Lost}} Terry]] [[TheStepfather O'Quinn]].
** And TheRemake has RyanReynolds as George Lutz.
*** And [[{{GIJoe}} Rachel "Scarlett" Nichols]] plays the babysitter.
* The house that the film's plot supposedly occurred in still stands in Amityville, Long Island. While it remains a popular walk-by spot, especially on Halloween, the iconic wedge windows have been replaced and the paint is different, to make it look less like the popular image of the house.
** The house used for the first three movies in Toms River, New Jersey was extensively remodeled for filming (the wedge windows and the gambrel roof were part of a facade), and looks nothing like the iconic image of it in real life. Even so, the house has been repositioned on the property as to not make it visible from the street.
** Christine Belford, who played Regina Cunningham in the film adaptation of ''Literature/{{Christine}}'', lived in the house at 112 Ocean Avenue from 1960-1965. Her parents sold the home to the [=DeFeos=].