Audio problem: At his "pool party", Mr. Saint is talking to a group of men, and there is a female singer standing in the background, her mouth is moving as though she is singing, but there is only music from the band.

Other: When Frank and the Russian are throwing each other through the walls in Frank's apartment, and then through the door in Bumbo's apartment, there are no studs in the walls and the doorway, like there should have been.

Continuity: When the three tenants of the apartment where Frank is staying come out of their rooms to investigate the noise, Joan walks up to the window and before she gets to the window crosses her arms, but in the following shot she is crossing her arms again.

Plot hole: Howard can't find Frank for days, but Harry Heck can find him in less than a day and in the exact restaurant.

Continuity: When Frank is positioning the fire hydrant he has trouble moving it due to its weight. Yet only a minute earlier he was carrying it quite easily in a bag a good few inches above the ground.

Continuity: After Frank shoots Howard Saint, when he goes to tie him onto the car Howard's hands change from resting close to his belly to resting on the floor.

Deliberate "mistake": When Saint is being dragged through the parking lot with all the exploding cars, there are a few shots where it is obviously just a dummy instead of John Travolta (the actor who played Saint).