When Jessie & Jason enter the nightclub, several of the people that the bouncer had turned away at the door are already inside the club.
In her close-ups, Kristy Swanson's makeup often changes in the same scene, from frame to frame, such as when she is on the bed talking to Jason or in the bathroom right after she has only applied lipstick; her eye makeup has completely changed, with suddenly unflattering darkened and much thicker eyebrows.
When Meshach Taylor impersonates a Marine he is wearing the uniform of a Marine Gunnery Sergeant ("Gunny") but he identifies himself to the policeman as a Staff Sergeant, one rank lower than a Gunny.
In the beginning, when Jason is looking for parking as he makes the U-turn to park, you can see the street blocked off and the people watching the scene being filmed.
The first time the mannequin close-up is shown, its eyes are brown but Kristy Swanson has blue eyes in her Jessie close-ups.
Hollywood Montrose acts puzzled and like Jason is completely crazy, when the latter is about to tell him that his girlfriend is a mannequin come to life. But this isn't Hollywood's first rodeo, considering that his character was already in the first mannequin film, where he was complicit to Kim Catrall's character being a mannequin come to life.