Other mistake: Outside the prom when Hunter is trying to convince Lisa and Mitchel to not go in and stop their daughters from getting laid, they turn around when they hear the honk of a car behind them where two people are having sex as if they bumped the car horn. However this is impossible as as soon as they turn around, the two people are in the back seat right behind the driver's seat, nowhere near the steering wheel to honk it, even with a foot. (00:35:45)
Character mistake: "I love Almond Joys. I'd rather eat 10 dicks than one Mounds" when given a bag of coconut oil for lube makes zero sense when both Almond Joys and Mounds contain coconut.
Continuity mistake: After Mitchell gets to his daughter and throws Connor out of the room, they start to talk and he sits on the bed next to her. For the entire conversation, almost every time the camera changes angles their heads and which way they are looking don't match up with the previous shot. (01:18:50)
Continuity mistake: Julie and her boyfriend are kissing in the hallway by the lockers and after he says he loves her, her arm is down with her hand on his arm around the bend of his elbow. They start to kiss again and it changes angles, and suddenly her arm is up with her hand by his neck. (00:07:10)
Continuity mistake: When Michel finds the pink thong in the laundry and thinks it's his wife's, he climbs on her bed chewing on them playfully before she tells him it's his daughter's thong. Between shots when she puts the mechanical pencil on his lips and tells him, the thong is suddenly hanging out of his mouth much further. (00:05:00)
Continuity mistake: Julie and her mom are eating together towards the beginning after the opening montage, and her mom says that she will miss these days. Julie's hand is up holding her fork in the shut, but when it cuts to the next angle her arm is down and she's digging at her plate. (00:03:20)
Continuity mistake: Lisa sneaks into the room that Kayla prepared for Julie and sits on the bed where an arrow is made with licorice. In a close up, part of it is moved so the arrow is crooked. But in the next shot after she asks herself what is she doing there, it is straightened out. (01:12:40)