Continuity mistake: When Septimus attacks the redheaded farm boy, the position of his knife changes between shots, from the farm boy's throat to behind his ear, several times. (00:58:05)
Revealing mistake: At the end fight scene when Lamia is laughing, you can see that her teeth are only darkened in the front, not the rear. (01:55:10)
Continuity mistake: The pony pulling Ditchwater Sal's cart changes throughout the movie. This would be so as to not overwork any one animal. It is most noticeable in the scene when Una is driving the cart after Yvaine. When she is in the city, the pony has a white stripe all the way down its face; when it is galloping in the forest, it has two separate white spots on its face; and the pony that Tristan detaches from the cart and rides has one spot on its face. Also when Tristan detaches the pony, it only has on riding gear (a saddle and bridle), whereas earlier in the scene it only has on a harness for pulling the cart.
Continuity mistake: When the Old Man who guards the wall whacks Tristan to the ground with his staff, the long shot shows him turn it upside down in a threatening gesture, but in the close-up immediately afterwards it's the right way up. (00:23:20)
Continuity mistake: As Tristan approaches Lamia after killing one of her sisters, he walks past the dead Septimus whose sword is about a foot away from his head. When Lamia reaches into the pool to grab her voodoo doll, there is a shot of Septimus and the sword is now in his hand.
Continuity mistake: When Dunstan Thorn attempts to cut the enchanted chain off to free Una, in the close-up of his hand, both the chain and his knife are in his right hand. In the next wide shot, the chain is in his left hand. (00:05:10)
