When Brian and Joe are chasing their first suspect, during the CHiPS parody, the luggage cart handles switch from facing inward to outward between shots.
When Peter is lying on Brian's bed the number of beers with him change multiple times.
During the fight scene at the drug ring, Joe kicks a midget with his leg.
While Brian has his breakdown in the living room, Mayor West is on the couch.
During the "Pea-Tear-Griffin" scene, when the griffin travels across the room, a man in the background appears to have no eyes drawn in.