Much of the audio doesn't match Diavolo's lips in the limo surround scenes.
In the courtroom scene, Cliff is spinning this wild yarn about his and Thema's family in Louisiana and he uses the word 'county' when Louisiana uses parishes, not counties.
Doctor Detroits hands are in a different position between shots. When he initially jumps aboard the tow truck, he uses the side-view mirror as a handle. In the next cut, he is shown holding on to the window frame.
The windshield glass Doctor Detroit breaks is shown inconsistently between shots. Sometimes the glass is very dirty, almost opaque, in other shots it is very clear.
The passenger side mirror on the tow truck is in a different position before (collapsed against the door) and after (away from the door) the doctor jumps aboard.
Errors in geography
Smooth books a one-way flight to the Cook Islands, then local service to Roratonga. In fact the Cook Islands international airport is *on* Roratonga.
Diavolo refers to Doctor Detroit's lime green pants. They were emerald green, not lime green.
Initially, the cable Doctor Detroit uses to escape the junk cars avalanche is much shorter and of a different configuration than the cable he uses to ride along the graveyard (obvious prop).
Missing passenger side mirror from Smooths' limo when Clifford exits, the morning after his initial meeting with Smooth.
Handle on the passenger-side roof of the tow truck, not duplicated on the drivers-side of the roof (obvious prop). A low camera angle used to conceal the prop.