1983 film by Richard Fleischer
Amityville 3-D (also known as Amityville III: The Demon) is a 1983 supernatural horror film directed by Richard Fleischer and starring Tony Roberts, Tess Harper, Robert Joy, Candy Clark, Lori Loughlin, and Meg Ryan. The third film based in the Amityville Horror series, it was written by William Wales, a pseudonym for David Ambrose. It was one of a spate of 3D films released in the early 1980s, and was the only Orion Pictures film shot in the format. It is an international co-production between Mexico and the United States.
Due to a lawsuit between the Lutz family and Dino De Laurentiis over the storyline (which did not involve the Lutz family), Amityville 3-D was not initially promoted as a sequel, and the name Lutz is never used in the film. However, the film does make a reference to the original Amityville Horror story. The character of John Baxter (Roberts) is loosely based on Stephen Kaplan, who was trying to prove the Lutzes' story was a hoax at the time. It was panned upon release.
Plot summary adapted from Wikipedia, licensed under CC BY-SA 4.0.