Continuity: When Norm Macdonald is thrown out of the window at the bar fight, you can see a perfect outline of broken glass around him.

Continuity: In the scene where Jack Warden tells Norm MacDonald that he is having a heart attack, you can see that even with them being indoors, it's clearly dark outside. But when the movie cuts to the ambulance taking him to the hospital, it's completely sunny.

Continuity: When Hamilton (the boss at the movie theatre) leaves a message on the answering machine, he mentions that he saw Sam ("Hey, fatso... fatso.") in the TV commercial. However, Sam was never on camera, he was out of sight, opening the trunks by remote control.

Factual error: Even though Pops is in such bad shape that he needs a heart transplant, he isn't hooked up to any monitors or equipment while in the hospital.

Continuity: In the scene where Sam beats up the answering machine and phone with a bat, the phone rings after its knocked off the hook. Then, when Mitch grabs the pieces of the phone to answer it he has the mouthpiece facing the wrong way.

Continuity: After the shot of the meter maid's hood is blown off by the popcorn, it shows a shot of her driving it, hood intact.

Visible crew/equipment: Near the end when you see the skunk humping the dog, you can clearly see the puppeteer's hand moving the skunk.