Directed by: Ivan Reitman
Starring: Dan Aykroyd, Bill Murray, Sigourney Weaver, Harold Ramis, Rick Moranis, Ernie Hudson, Annie Potts
Audio problem: Running away from the 'bear', Tully shouts the humorous line; "I'm gonna to bring this up at the next tenants' meeting...there's not supposed to be any pets in the building." However, look at Rick Moranis' face; his lips are not moving and the line was dubbed over. (00:54:10)
Audio problem: When the Archbishop says "How are you, Lenny?" to the Mayor in his office, his lips don't match what he is saying. (01:15:55)
Continuity mistake: During the flying eggs scene, the lettuce on the right changes shape and position between angles. (00:19:20)
Ray Stantz: Where do these stairs go?
Peter Venkman: They go up.
Trivia: When Peter Venkman mentions the time Egon Spengler tried to drill a hole in his head, Egon replies, "That would have worked if you hadn't stopped me". This line was ad-libbed by Harold Ramis.
Question: I heard that Ron Jeremy had a walk on part in this film, does anyone know in which scene he is in?
Answer: Ron Jeremy can be seen in the crowd outside the firehouse right after the containment unit is shut off.