jle

Continuity mistake: When Dennis is sitting in his boat talking with Griselda and Mr.Fishfinger he gets covered in rubbish. Although he wipes most of it off there is spaghetti left on his hat and jacket. In the wide shots, though, he is clean. (00:08:20)

jle

Continuity mistake: While Dennis is talking with Mr.Fishfinger, a piece of straw stuck in Dennis' hair suddenly vanishes. (00:04:40)

jle

Factual error: In the opening shot of the film, The first verse of the poem is recited. There is a very minor mistake in the subtitles on the region 1 DVD. Instead of "...in the wabe: All mimsy..." they read "...in the wabe. All mimsy...". (00:00:10)

jle

Continuity mistake: In the armoury, when Dennis is trying to improve the efficiency of the riveters, the glove being riveted is only rotated in the close up shots. In the other shots they are hammering the rivets into the same hole every time. (00:46:20)

jle

Visible crew/equipment: During the joust, when the knight with the dog as a symbol is defeated the wire that pulls him from his horse is briefly visible. (00:43:00)

jle

Continuity mistake: Wat Dabney's severed foot changes position on the sheet in front of him. (00:37:30)

jle

Visible crew/equipment: When the wheel-pushing religious group are shouting about the beast, there is a modern looking box with "H2" painted on it behind the stall of an onlooker. (00:34:20)

jle

Continuity mistake: The peasant with the rock is killed by the Jabberwock. When his skeleton first lands next the Dennis, it has a bit of flesh left on it but lots of bone is visible. The shot then changes to show Dennis backing away and the peasant's corpse now has a lot more flesh on it and the legs are in a different position. (00:31:15)

jle

Continuity mistake: When the peasant with a rock is trying to get past the two guards into the city in some shots there is a wooden pole between the guards and in other shots there isn't. (00:21:00)

jle

Visible crew/equipment: When the Black Knight falls from his horse while attacking Dennis there is a lorry parked in the background. (01:33:05)

jle

Revealing mistake: When the Black Knight kills the King's champion with his axe, you can see the flash and smoke from the charge which blows the armour apart. (01:32:00)

jle

Continuity mistake: Just before Dennis rescues the Fishfinger family, the knight is riding the horse that the Dog knight was riding earlier. When the Knight and Dennis are walking through the destroyed village the knight is riding a different horse. The pattern of white on its nose is very different. (01:23:15 - 01:29:35)

jle

Continuity mistake: As Mr. Fishfinger is being rescued by Dennis, some bits of rope appear on his stomach. (01:25:10)

jle

Factual error: As the knight and Dennis leave to fight the Jabberwock, another verse of the poem is recited. A line is read as "the Jabberwock with eyes aflame". The line in the original poem is "the Jabberwock with eyes of flame". (01:22:30)

jle

Continuity mistake: When Dennis and Ethel are talking during the hide-and-seek competition, they are sitting next to a table with a flask on it and a sword stuck in the ground next to it. In the closeup, the sword has gone. (01:14:30)

jle