Blooper

When Lewis is chasing the Works Outing coach in his sports car, both vehicles are on a two-lane carriageway, but when in medium close shot he waves, he is on a three-lane road, and then when seen from inside the coach - it's a two-lane carriageway again.

On the trip back from Brighton the coach stops at numerous pubs. You see the name of each pub they all stop at but the reflection on the side of the coach each time shows them getting off and on at the same place.

When Lewis and Myrtle are in the cinema, Spanner can be clearly seen sitting behind them holding his silver motorcycle helmet in his lap. But then the film cuts to him shuffling along the row, with Bernie, going to their seats. When the film cuts back to Lewis and Myrtle, Spanner can be seen in the same position as before.

A suited and booted chap with a flyaway mop of copper hair can be seen walking down the street when Bernie first pulls up outside the Spanners' house. Soon after, the same man can be seen across the road from the parked motorbike. A few seconds later, there he is again, back walking down the street behind Vic.

When Sid confronts W.C. Boggs in his office, because Myrtle has been out all night, they hear a commotion outside and go to the window to see the cause. In the brief shot of the main gate, as seen from the office window, Vic Spanner can clearly be seen being smacked over his mothers knee. The next shot is outside with Vic rallying the pickets at the main gate. His mother, and the other women, aren't there, and he hasn't yet been chastised. The ladies turn up later in the same scene.

When Sid bets £56 on Sweet Sue at 18/1 in the horse racing, he collects £1026. He should have collected £1064. £1026 is what he would have collected if he had bet £18 at 56/1.

The vocal expletives used by Vic Spanner when he and Lewis Boggs are brawling in the ghost train ride at the funfair are the same as those used at the end of the film when Vic Spanner is being chastised by his mother in front of the factory gates.

When Bernard Bresslaw drives off on the motorbike leaving Kenneth Cope behind minus his trousers, he is supposedly in pursuit of Richard O'Callaghan and Jacki Piper in the MG Midget. But in the distance one can clearly see that, rather than continue the pursuit, the motorbike slows down and turns off to the right into what appears to be a car park.

In W.C.Boggs' office, when Charles Coote has just designed a toilet, Sid decides to test it and sits down on it and reads a Racing paper. Charles says, "It was hardly designed as a reading room." In the next shot he can be seen saying the word "room" again but with no sound.

The coach party leave Brighton and the bus stops at a bus stop with a London Transport sign on it.

Actor Kenneth Cope (Vic Spanner) clearly fluffs a line when Vic is seen sitting on the toilet seat in the factory. He noticeably stumbles over the word 'charge'