Goofs

(at around 1h 3 mins) When possessed Frannie and Max come out of the coffin they're both naked, but at the end of the movie (at around 1h 21 mins) they're wearing clothes again. Since they're possessed, it makes no sense for them to put on their clothes.

(at around 57 mins) Jay is killed while having sex with Suzanne (shirt's open and pants down) but when Judy and Sal discover his body, and when he's later possessed, he appears fully dressed and his shirt is buttoned up.

In Italian version at the beginning of the movie the characters talk about a party for "Carnevale," while later in the movie when they're going inside Hull House, they talk about "Halloween" or "Ognisanti."

(at around 39 mins) When Jay, Judy, Max, and Frannie converse in the darkness with the flashlight, the beam on Jay's flashlight changes between shots.

(at around 10 mins) In the convenience store, the repeated sounds from the arcade machine are actually from the Atari 2600 home version of Pac-Man (1980).

(at around 4 mins) In the opening scene when Stooge, Helen and Rodger are in the car Stooge asks Helen to take the wheel. When he does he accidentally calls Helen "Stooge."

Actually, Stooge is speaking about himself in the third person before mocking the old man.

(at around 1h 1 min) In the hallway scene where Angela is floating after Judy, her mouth movements don't match the timing of the demon moans.