Continuity mistake: When Gordon and Benny are in Stephanie's apartment with James, you can see the clock behind Benny, but a few of shots later the time has changed to being earlier.
Continuity mistake: When Gordon tastes the bran cereal with soy milk and prunes, the cereal box is on the table beside the soy and regular milk containers, but when he's gagging by the sink the cereal box has vanished in the shot facing James, and then it reappears. Things on the table change position as well, such as the soy milk turning itself around.
Visible crew/equipment: At the pet store, when Spot stands on his hind legs in order to push the shelving unit onto Gino and Arliss, the arms of a crew member can be seen pushing the shelving unit.
Continuity mistake: When Gino and Arliss are given the contract to kill Agent 11, note the distinctive pattern on the shirt Arliss is wearing - particularly the collars, which keeps changing even within the same scenes. Though the actor's wardrobe consisted of black shirts of the same style, their patterns varied. For example, during the scene at the pet store there are at least three different patterns seen on his shirt. The same thing happens again later with a different shirt Arliss is wearing, after the scenes of Gino and Arliss at the dog training facility.
Continuity mistake: When Gordon fixes himself the bowl of bran cereal with soy milk and prunes, he places the orange cap back on the soy milk, but when he tries to eat the cereal and spits it out, the soy milk cap is gone (the gallon of regular milk has a pink cap behind the capless soy milk). Then it's back on the bottle, before it's off and back on again.
Visible crew/equipment: When Stephanie gets into the van that's headed to the airport, the reflection of the cameraman and camera can be seen on the window when Stephanie shuts the door. (00:18:10)
Visible crew/equipment: When Spot bites Gordon's helium filled bubble-wrap, Gordon knocks over Gino and Arliss as he flies across the aisle, and before the shot cuts away we can see a crew member at the left side of the screen just as Gordon passes him.
Revealing mistake: While Gordon and James are in the mail truck trying to outrun the baddies, James opens the back door and starts throwing the boxes, and in the closeup we can see the knotted black safety strap attached to the boy's back for the stunt.
Continuity mistake: While Gino and Arliss are at the restaurant stressing about finding the dog, Gino tells Arliss that he hates Tommy because he has no respect, and when the cell phone rings two cans of dog food suddenly appear on the table in the next shot.
Visible crew/equipment: When Gordon's locked out of his building he climbs up the drain pipe, and while the pipe sways back and forth we can see the safety cable attached to Gordon.
