Visible crew/equipment: When Terri sits down to talk with her aunt after Paul's graduation, you can see between her shirt and his pants on her right side there is a 1/8" wire used for the wireless mic.
Continuity mistake: When Rico runs to the basketball court to spill about the Big Bounce, he begins to sit down on the court. After it cuts Rico starts to sit down again for the second time.
Continuity mistake: The entire plane is on a slant after the front wheel gets stolen in Central Park. Yet when the passengers are having the party upstairs in the next scene, the whole place is perfectly level.
Continuity mistake: At the beginning, Ray holds out a ticket for the bus driver to see. In the next shot, from behind, both Ray's hands are at his side. When the shot changes back to the front, his right hand is extended again holding the ticket.
Visible crew/equipment: When Len, Eddie and Len's henchmen get out of the van they are in, you can see the camera crew (including soundman) filming in the reflection of the van's surface.
Factual error: When they show the Nelson Eddy song 'I Love You', the set/movie shown is Rose-Marie. But that number is from Rosalie not Rose-Marie. Two totally different movies - one set in West Point not with the Canadian Mounties. There are no Cole Porter songs in Rose-Marie, likewise there are no Mounties in Rosalie. Rose-Marie's music was by Harbach / Hammerstein II / Friml / Stothart. (01:09:25)
Audio problem: When Lola is on stage performing Eliza Rocks, she turns her head away from the audience and quickly whips it back. As she is turning her head away her lips are not moving, but the song continues.
Continuity mistake: When the group goes to the diner after their first class, When Bobby takes off her hair piece clip and puts it back on, at first it's smooth then when the shot changes, it's all messed up.
Continuity mistake: After the love scene with Penelopa, Frankie sits down on the chair wearing a green shirt. In the next shot he is wearing a blue bathrobe.
Other mistake: At the beginning, Pierre's doorbell rings. He goes to answer it, only to see Pépinot walking up the driveway. How could he ring the doorbell while walking up the driveway?
Audio problem: Although Kevin Spacey actually sang for the soundtrack, his lip-sync blunders are noticeable in every song, and virtually all of the musical routines in this film are out-of-sync with the audio track. Even rhythmic hand-clapping on stage is out-of-sync.
Continuity mistake: When Lisa uses a vibrator, you can see in the background of Matt's bedroom a chair with some books on it. However, just about a little over a minute into the scene, when the camera switches between Matt and Lisa, right before she climaxes, the books are gone from the chair. (00:42:45 - 00:43:50)