Revealing mistake: At the beginning of the film, Stan reverses the bus into the manager's car. While the manager is under the bonnet looking at the engine, causing it to fall on him, you can see a rod with padding on it to stop the bonnet from hitting the manager. It is gone in the next scene.
Continuity mistake: When Jack goes to the surgery to take his pleasure with the nurse, he chalks on the blackboard on the door that the nurse will be unavailable for 30 minutes. When Blakey arrives, the 30 minutes note has gone from the blackboard. But when Blakey opens the door with his passkey, the 30 minutes note has re-appeared on the door.
Audio problem: When Blakey visits the butler families chalet to tell them that the dance contest is cancelled, the butlers can all be heard saying goodbye to Blakey, but none of their lips are moving.
Continuity mistake: When Jack is about to have his wicked way with the nurse she gives him 10 minutes on her door chalkboard. Jack thinks this is not long enough, but the 10 he rubs out is suddenly smaller than the 10 the nurse wrote.
Continuity mistake: When Stan and Jack first arrive at the holiday camp, you see an overhead shot of them walking towards the main building, but when the shot changes to ground level there are different people around them than there were in the previous shot.
Factual error: When Olive is repeatedly saying "I can't find it," Mr and Mrs Briggs are listening through the walls of their bedroom. However, we can see when Jack and Stan return with the toilet that Mr and Mrs Briggs are staying in the chalet to the right of the Butlers. When Stan first shows the family their chalet, it shows that their bedrooms are on the left. This means they wouldn't have been able to listen to Arthur and Olive through the wall.
Other mistake: When the family first enters the chalet, you can see the curtain move to the left of the door as they all pass by it, indicating that the window to their chalet is the one to the left of the door. In the next shot, it shows that there is a solid wall to the left of the door, and the window to their chalet is actually to the right of the door.
Revealing mistake: When Stan cuts up Arthur and the motorbike crashes into the bridge, you can see the stunt man throws the suitcases into the water.
Continuity mistake: At the beginning of the film, Stan is briefly driving the red bus wearing his badge number 'FF7991' from the TV series. However, this should be 'AZ721' as with the other films.
