Continuity mistake: In the scene where Kenneth Williams is "admiring the view" by Bernard Bresslaw's caravan, when Bernard goes back into his caravan the awning tent outside the door has disappeared. It is there throughout the rest of the film.
Visible crew/equipment: When Professor Vrooshka visits Arthur's caravan and asks him if he has any crumpet, you can see the reflection of the boom operator on the front door window behind her.
Continuity mistake: When Professor Crump is talking to Anna Vrooshka in the showers, you can see that Anna's shower has nothing on the door. When Arthur enters and Crump gives him Anna's clothes, her shower has now gained a glass panel.
Audio problem: When Sandra says "It's warm, isn't it?" before she takes off her jumper, her mouth is not moving.
Continuity mistake: When Ernie asks Sandra and Carol if they would like to have dinner with him and Fred, he is holding the cup and saucer in his right hand. In the next shot, he now has both hands on the saucer.
Continuity mistake: During the breakfast scene with Fred, Ernie, Carol and Sandra, Carol puts her hand on Ernie's hand while he is eating his cornflakes and then puts her hand back on the table, but in the following shot her hand is back on Ernie's hand again.
Continuity mistake: When Barnes leaves his caravan after discussing the rent with Professor Crump and Professor Vrooshka, Professor Vrooshka is holding a large knife, but in the next shot she is now holding a briefcase.
Continuity mistake: When Daphne tells Arthur that she won't have swearing after he hits his hand with the mallet, Arthur kicks down the awning on the caravan. At this point, Arthur is holding a mallet, but in the next shot when he is happy and rubs his hands together, the mallet is nowhere to be seen.
Continuity mistake: At the beginning of the stripper film during Professor Crump's lecture, you can see the stripper is wearing tights. When Crump says "We see the sight partially uncovered", the tights have disappeared, and in the next shot, they are back again.
Continuity mistake: When Else enters the butchers' shop at the beginning of the movie, Fred is serving a woman wearing a scarf on her head and behind her is a blonde haired lady. But when Fred says "Hello, Else!" in the next shot, the blonde lady has just been served by Fred and the woman with the scarf is nowhere is sight.
Continuity mistake: When the couple who are about to have their lunch outside their caravan are interrupted by the beach ball, the ball knocks a brown bowl containing salad off the table. After a quick cut to Fred, we return to the couple and the bowl is back on the table again.
Continuity mistake: When Sandra is in Ernie and Fred's caravan, she says to Ernie that their stove isn't working. Sandra then hands Ernie the stove, but when the camera is behind Sandra in the next shot, she hands it to him a second time.
Continuity mistake: When Professor Crump says "I've been shot!" after the tent explodes outside his caravan, a bottle of tomato ketchup starts dripping on him and you can see his pyjama top is completely clean, but after a quick cut to the bottle dripping, we return to Crump, and his top is more dirtier than it was previously.
Continuity mistake: When Joe Baxter enters the shower room, the towel he is carrying has moved from one shoulder to the other.