Goofs

When Tawny Kitaen enters the party in disguise, she's wearing a blonde wig. When Tom Hanks has her in the bedroom, she pulls off the wig and her brunette hair is straight. In the next scene, as she's leaving in a huff, her face is very heavily made up and her hair is curly.

After Cole grabs Debbie and hijacks the city truck, Rick and the others get into the bus and give chase. When the bus pulls out of the alley it says "St. Gabriel's School" on the right side and ARA Transportation on the left. When the bus pulls up at the movie theaters, it says "St. Gabriel's School" on the left side.

When the bus is in the parking lot before crashing into the screen, the headlights are off. After it crashes through the screen, the headlights are on.

During the party, Rick yells "Alligator!" and everybody drops to the floor and shakes around. A hooker dressed in purple gets up twice in two different shots.

When the guys are about to watch Jay's porno movie, O'Neill is seen putting the projector cover on the table twice in two consecutive shots.

When Rudy breaks into Cole's Porsche, he gets in and acts as if he is manipulating the ignition by pantomiming something to the driver's right of the steering wheel.

All US Porsches have their ignition on the left hand side of the driver's wheel to allow for a "Le Mans start" (one hand on the ignition, the other on the gear shift.)

When the 3D theater scene occurs the image of the screen is in standard format. The image should be in anaglyph 3D.

The 1971 Plymouth Satellite being serviced on four jack stands where the undercarriage falls out - Mopar B-bodies (produced until the 1979 model year) do not have a full perimeter frames; Chrysler products produced in the 1970s were unibody vehicles with the exception of its 1971-77 full-sized C platform vehicles (Imperial, Fury, Monaco) which had a bolt-on subframe. The only full-framed Chrysler products produced in the 1970s were Dodge light and medium duty trucks.

Although Rick has the bus valet-parked when the gang arrives at the hotel, he would have had to take it out of valet parking when they go to spy on the ladies at the strip club. So it's possible that he simply parked it in the alley when they returned and left it there, which would explain why the bus is standing there the next morning when everyone is running out of the hotel.

When Cole opens the door to room 1002 a moment after Gary has left, Gary can still be seen next to the door, dashing out of the shot.

After Nick the stripper supposedly puts his member into the hot dog bun, it is clear the bun is empty when he faces the camera.

When Rick drives the bus away from the school he hits the "play" button on the cassette player but there is obviously no tape in the player but music appears to be playing.

Dr. Tina Gassko introduces Rick as her brother. He was not her brother, he was her husband Stan's brother. Even after the marriage Rick would have been her brother-in-law.