When Dawn returns home from hospital with the Dashers and unwraps the birdcage containing Aunt Ida, Donald instructs her to, 'Cut off the hand that threw the acid!' Dawn then chops off Ida's left hand. Ida, however, threw the acid with her right hand.
When Taffy throws a tantrum and is taken to the bed in the attic, she reaches for the manacles although she is being restrained against her will.
The word "chaplain" is misspelled "chaplin" in the closing credits.
When Dawn, Concetta, and Chicklette are in the school bathroom complaining about school and Christmas, both Concetta and Chicklette hold up a can of hair spray to apply to their hairdos, but it is obvious no spray is coming out of the can nor does the can make a spraying sound.
On the "open matte" releases of the movie, there is an error regarding Dawn Davenport's Defense Attorney. When he is introducing his side of the case, he is standing. When the camera focuses on Dawn Davenport posing when the attorney says "innocent by reason of insanity", he is seen sitting down, even though he was presenting his side of the case.
Dawn became pregnant with Taffy on Christmas Day 1960, meaning she would have been born around September 1961. However, in the scenes set in 1974, Dawn and Gator say that she's 14 when she could not have been older than 13 at most.