Beetlejuice
The name of the film is the phonetic pronunciation of the lead character's name Betelgeuse who shares his name with a large red star in the constellation of Orion. Repeating this name three times is all that is required to summon him. Repeating his names three times also makes him leave. Adam and Barbara are not his only victims, as scams are his specialty. He used to be an assistant to Juno (Sylvia Sidney), the Maitland's case worker, before getting into trouble.
A typically dark and humorous Tim Burton film, most of Keaton's lines were apparently improvised on set. Notable guest appearances include Robert Goulet and Dick Cavett (Dylia's art agent). Songs from Harry Belefonte are featured quite heavely in the movie. The movie paints the picture of the afterlife as bureaucratic, with waiting rooms and required reading ("The Handbook for the Recently Deceased"). People who commit suicide are civil servants (the receptionist Adam and Barbara meet slit her wrists). Adam and Barbara are trapped in their house. The world outside is of sand dunes and a sandworm (Betelguese calls this place Saturn).
An animated television series loosely based on the film also called Beetlejuice ran from September 1989 to December 1991. A sequel to the movie has been in the works for over fifteen years, but it is doubtful anything will come of it, although Michael Keaton has expressed interest in reprising his role.
Beetlejuice is also the name of a recurring guest on the Howard Stern show.