Revealing mistake: As Hi is racing after the baby, a close-up of his tired face driving the brown Caprice shows the gear selector is in "Park".
Revealing mistake: When Nathan Arizona Sr. first meets the Biker from Hell in his office at the furniture store, listen closely to the traffic driving by outside. It is generated by a music synthesizer.
Revealing mistake: When H.I. runs away after a robbery, you can see very fresh tire tracks made by the camera car on the wet pavement. The street was deserted, so the tracks couldn't have been from another car.
Revealing mistake: When H.I. Is trying to decide on which baby to take one of them has very curly hair but when the mom sees them all sitting up in their crib none of the babies have that same hair.
Revealing mistake: In the beginning, a three-column newspaper story about the Arizona Quints is shown for a couple of seconds. Aside from the lead paragraph, the entire, lengthy newspaper story is composed of the same three paragraphs repeated over and over.