Continuity mistake: While LaWanda and the family are eating the salad with the bugs in it, they start to notice things moving around on their plates. Ben Healey (Grandpa) says, "What in the hell is in this salad?" LaWanda replies, "It's bleu cheese" after taking a bite of a piece of salad leaf with a big bug under it. During this shot, there is nothing on her face. The next shot is very brief, showing a surprised look on the others faces. In the very next shot, a huge bug is suddenly crawling on LaWanda's cheek. There was no way this bug could crawl out of her mouth and onto her cheek in the time allotted, let alone without her noticing.
Add timeMovie_Freak 1
Revealing mistake: Junior can't get on the Crazy Dance because he is a milimeter too short. After seeing Murph (the 20-year old in his class) and Trixie (on heels) get on it, Junior speeds up the ride and all the kids on it get dizzy and barf everywhere. If you look where the puke shoots out, it's a bit obvious it's not coming from their mouths, but from a point behind them. Most obvious are Trixie and the boy wearing glasses.