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.
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 Bernie revs the motorbike's engine outside Mrs Spanner's house, a lady in a green dress is walking down the street in the background with her back to the camera and walks almost nearly out of shot when the we cut to Mrs Spanner shouting out of the window. In the next shot (of Bernie back on the bike) the lady in the green dress can be seen walking past once again.
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.
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.
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.
On the close up with Sid sitting on the chair, you see two knitting needles, one on either side of his jacket. When Beattie and Sid are in view, the jacket completely covers the knitting needles, next shot, close-up again, needles seen again.