Revealing mistake: When the bailiff pours rum into the judge's jar, it's obvious that there's nothing coming out of the flask. (00:13:05 - 00:14:10)
Factual error: The final scenes titled "Kankakee 1991" show desert scenery in the background; Kankakee, Illinois is in the Midwest US, which is almost entirely grassland and no desert.
Suggested correction: Kankakee and most areas surrounding have sandy soil and some areas can look very desert like during a very hot dry season but the mountain in the background is what gives it away. Kankakee is very flat other than the landfills.
Continuity mistake: Kelly knocks the lampshade off the lamp. Next shot shows it put back on although no-one is around it.
Factual error: Al plants a vegetable garden. 6 weeks later his garden is shown with fully developed vegetables including full stalks of corn. Not possible in a month and a half.
Other mistake: Al is running the water down the rabbit hole. Bud says the ground isn't even wet and asks where the water is going. A few seconds later Marcy is walking through the yard squishing on the ground because it's flooded.
Revealing mistake: When Al slams Kelly's date's head on the banister it moves back and forth indicating it's made of rubber.
Other mistake: Bud calls a late night sex hot line which is a 1 900 number yet he only pushes 6 digits on the phone.
Visible crew/equipment: At the beginning of the Last Will reading we see that there's no-one sitting left to the female notary. But in the close-ups there is a small round silver-shining object at the right edge of the picture - left from her. Must be some equipment. (00:04:20)
Continuity mistake: Marcy's floral headpiece falls off during the backyard wedding scene, then, in the next shot, after she hits Al with her flowers, it appears on her head again. (00:18:30)
Visible crew/equipment: Right after Jefferson walks out after saying what he was in jail for, when they are showing Bud and Al, you see a large head shadow go across Bud's leg from left to right.
Visible crew/equipment: When Bud and Kelly are sitting on couch, after Al goes upstairs, you can see the shadow of crew/equipment go across Bud's shirt from right to left.
Visible crew/equipment: When Peggy enters you can see the shadow of someone's head at the left edge (the kitchen). It can't be anyone of the actors. (00:12:05)
Continuity mistake: The out of order sign on the toilet changes position between shots. It's level at first. Camera cuts to other men. When it cuts back to Al it is tilted. (00:18:18)
Continuity mistake: When Al and Peg are on the couch, the ice bag changes position.
Oldies but Young 'Uns - S5-E17
Other mistake: Just before Charlie and his son leave Peg says "Charlie, my watch". Implying that he took it off her wrist. Yet during the whole scene she didn't have a watch on her wrist. It appears in his hand out of nowhere.
Weenie Tot Lovers & Other Strangers - S5-E18
Revealing mistake: When Peg opens the last weenie tot box, notice that only a ticket falls out. Meaning all the boxes had no tots in them just tickets.
Weenie Tot Lovers & Other Strangers - S5-E18
Continuity mistake: When Al asks for the checkbook to write a check for Bud, Bud puts his right hand on Al's left shoulder. Next shot, Bud's hand is coming off Al's right shoulder.
Kids! Wadaya Gonna Do? - S5-E19
Continuity mistake: Bud comes in the house after telling the old lady to get lost. The door doesn't shut completely. Kelly says open the door open the door. Bud goes to the door and it's shut even though it was open a crack from him not shutting it before.
You Better Shop Around (1) - S5-E21
Continuity mistake: When the store employee comes over to ask Al and Peg what they were doing, Peg throws a bag of chips in the shopping cart and says shopping. When Al asks Peg what the ingredients are, next shot the bag of chips are on Peg's lap.
You Better Shop Around (2) - S5-E22
Plot hole: The supermarket director orders the photographer to take a photo of Al's special shopping cart. Then he turns around a little towards the cart. When the camera flashes, his right shoulder has to be in the whole left side of that picture. (00:07:50)
