Factual error: As Kennith Williams and Bernard Bresslaw approach a notice board on horseback, you can blatently see the road they are on. You can even see the white hazard lines on the road. Apart from anything else, Tarmac wasn't even invented until 1901 yet this episode is set in 1750. (00:12:30)
Continuity mistake: When Bernard Breslaw and Kennith Williams are at a table (with two others). Bernard says about "Such stupidity". As he says this, he is lifting a glass of wine to his mouth. When Williams says his line directly after, Bresslaw is pouring his drink again. (00:58:45)
Continuity mistake: When Barbara Windsor is getting undressed to prove that she is not a man, there is a red garment which is crumpled up on the bed behind her. When she finishes undressing the red garment is spread fully across the bed.
Continuity mistake: In the scene where Sid James is trying to teach Barbara Windsor to count by using her two best assets, watch his coat. From the front Sid wears a white shirt, brown waistcoat and matching top-coat. From the back however, Sid has lost his top coat and is in his waistcoat and shirt sleeves. As the scene cuts between the two shots, Sid's coat disappears and reappears.
Continuity mistake: When Sid James is talking to the landlord of 'The Old Cock Inn', from the distant shot Maggie is sitting at a bench in front on her own. When the scene switches to close-up, there is a man sitting next to her.
Continuity mistake: When Jack Douglas is climbing the wooden ladder in the bell tower, his right leg gets caught in the bell rope set as a trap by the Reverend. However, when he is shown swinging, it is his left leg that is in the rope.
Factual error: Look out for the War Memorial on the green outside the Reverend Flasher's (Sid James) churchyard: it is dedicated to those who fought in died in World War I (1914-18) and World War II (1939-45). Yet "Carry On Dick" is supposedly sometime in the 1750s.
Continuity mistake: When Kenneth Williams & Jack Douglas are at the 'The Old Cock Inn', the candle on their table gets bigger and smaller throughout the scene. At one point it has nearly burnt completely down, yet when Jack Douglas comes out of the toilet for the second time, it has grown back to at least six inches.
Continuity mistake: When Bill Maynard is introducing Madame Desiree and her Birds of Paradise at the Old Cock Inn, he is holding a tankard in his right hand. The tankard disappears in the next shot, and in the shot after that, it is back again.
Continuity mistake: During the service at the church towards the end of the film, Sid James takes the collection bag and after he says "Hymn 202, O God Our Help" he walks off with the bag in his right hand, but when he enters the vestry in the next shot, the bag is now in his left hand.
Factual error: Dick Turpin was executed in 1739, but the Bow Street Runners were not founded until 1749. Kenneth Williams' character repeatedly states he is from the Bow Street Runners.
Continuity mistake: When the Rev Flasher is talking to the innkeeper at the pub, Maggie is smoking a pipe, but in the next shot, she is now drinking from a lidded tankard.
Continuity mistake: When the organist plays "O God Our Help" for the first time at the church service towards the end of the film, the Rev Flasher takes Tom from the organ and head off towards the vestry. At this point, Flasher enters the vestry first with Tom behind him, but when we cut to the inside of the vestry in the next shot, Tom is now entering first followed by Flasher.
Continuity mistake: When the Rev Flasher announces during the collection the congregation will sing Hymn 202 for a third time, we see Sergeant Jock Strapp, Captain Desmond Fancey and Sir Roger Daley at the back of the church. After a quick cut to Flasher, two men approach Fancey and Daley for their collection, but Strapp is nowhere to be seen.
Continuity mistake: When Captain Desmond Fancey and Sergeant Jock Strapp are at the inn, they are sitting on a bench next to the stairs. When the Rev Flasher is walking up the stairs, Fancey is all by himself and Strapp is missing.
Continuity mistake: When Sir Roger Daley is cursing Captain Desmond Fancey after the Rev Flasher escapes from the church, there are members of the congregation leaving behind Fancey, but in a close-up of him, they disappear.
Continuity mistake: When Jack Douglas is swinging after getting his foot caught in the bell rope in the tower, he initially has nothing on his head but a few seconds later he is wearing his hat.
Continuity mistake: When we see Bill Maynard in the wooden stocks, you can see that there is a piece of tomato underneath the hole of where his head is inserted. But when Peter Butterworth says "Next time, keep your hat on", we cut back to Maynard and the tomato has disappeared.
