Continuity mistake: When Vic is sampling the liquor at the market, watch the position of Moira. You can see that she is standing by the bottles near the stall at the start of the scene, but when Vic finishes drinking, she is now standing further away. When Moira runs away from Vic after he growls at her, she is back near the bottles again.
Continuity mistake: When it starts to rain while on the terrace, Kenneth Williams gets under the umbrella table on the right, but in the very next shot he is seen on the left waving his arms in the air.
Continuity mistake: At the start of the film, Joan Sims argues with Sid James over his trip with Barbara Windsor to Elsbels. When Joan finishes shouting at Sid, she has moved from one side to the bar to the other between shots.
Revealing mistake: When Vic and Cora are disturbed by the workers at 5am, they put cotton wool in their ears and go back to bed. In the next shot, their hotel bedroom ceiling is removed by hand by two workers, but when Cora says "Vic! Look up there!", you can see shadows of ropes pulling the ceiling along. The ropes disappear when the camera cuts to the ceiling again.
Continuity mistake: When Brother Martin catches Brother Bernard putting sun cream on Marge's back, look behind him and you can see Nicholas sitting on a sunbed, but in the close up of Bernard squeezing the bottle, Nicholas has disappeared.
Continuity mistake: When Vic and Cora are talking about their holiday after Vic closes up the pub, the black jug on the counter changes position between shots.
Continuity mistake: When everyone is boarding the coach to take them to the airport, the vehicles parked in front of the coach keep changing. When Mr Tuttle gets on the coach there is a grey van and red lorry in front of it, with a grey lorry in the alley to the left, but when Mrs Tuttle tells Stuart to look after him the red lorry has gone and the grey lorry is replaced with a white car. When Mr Tweet and Mr Phipps board the red lorry is there but the grey van has gone. When Sadie boards there is a white van in front of the coach, but when Bert Conway offers to help her with her suitcase there's a brown lorry in its place. When Stuart tells the driver to wait for the party of twelve men there is a blue van and red car in front of it that suddenly vanishes.
Revealing mistake: When Pepe walks through the curtains carrying two planks of wood in the hotel lounge, he falls through a hole in the floor. When he falls through the hole, black curtains used to create darkness are visible.
Visible crew/equipment: When Sid James is enjoying a coffee outside the hotel, Joan Sims says, "Don't bother to ask me if I'd like a chair". A microphone can be seen in the bottom left hand corner.
Continuity mistake: When June Whitfield picks up her towel and toilet bag when on her way to the bathroom, her toilet bag moves from one hand to the other between shots.
Continuity mistake: When Jack Douglas is speaking to Sid James in the pub, there are two plates of bread rolls next to him, but in the shot when he puts his elbow in one of the rolls, the rolls on the second plate have changed position and a tomato ketchup squeezer has suddenly appeared.
Continuity mistake: When Pepe runs into the hotel after seeing the coach approaching, there is no table or chairs beside the doors. But when he comes out to greet the guests, a table and chair have appeared.
Revealing mistake: When Kenneth Williams is speaking to the other holidaymakers on the terrace, it begins to rain. All of them run inside except Charles Hawtrey, who is lying on his inflatable lilo. At this point, black tarmac is visible along with what is supposed to be a beach.
Audio problem: When Jimmy Logan is having his breakfast with Barbara Windsor on the hotel terrace, he laughs but his mouth doesn't move.
Continuity mistake: When Sid James attempts to open the bedroom balcony door, it appears stiff and difficult to move. But when Peter Butterworth attempts to open the door, it is wobbling and rickety.
Continuity mistake: Watch the position of Moira during the party scene. First she is with Stuart by the balloon sculpture, but when Pepe arrives with the punch she is having a drink next to the table. And when Pepe says, "Champagne punchings", she is back with Stuart again.
Audio problem: When Kenneth Williams has his trousers pulled down during the fight at the market, he says "Oh dear" but his lips don't move.
Continuity mistake: When we see the British plane in the sky, the first shot shows the plane in a cloudy sky, but in the next shot the sky is clear and the shoreline is visible.