Revealing mistake: When they are at the Nutmar camp in the mountains, Val Kilmer tells Willow "Get on that shield!" but when they go over a 6, 7, 8 foot drop when they are sledding down the snow, you can clearly see runners on the shield.
Revealing mistake: Every once in a while Alora Dannon's hair stays put when she moves her head (fake hair attached to her bonnet!).
Continuity mistake: Near the end of the movie the camera pans to different villagers as they notice Willow returning after his journey. One of the villagers they show is Willow's wife, although they show her in another scene (a minute or so later) walking from a different area and noticing Willow for the first time (again).
Suggested correction: The first woman we see at 1:59:40 looks like Kaiya but her hair is long (while Kaiya's hair is a short bob), and she wears a long brown dress while Kaiya (at 2:00:15) wears a midcalf reddish-brown dress with a white apron.
Continuity mistake: While Madmartigan is caged up and Willow says "And supposed you're a warrior", you see Madmartigan playing with the chain in his hand. When it cuts, his hand is holding onto the cage. (00:30:20)
Continuity mistake: When Madmartigan hands Willow a sword in the castle, then pulls his own sword, it has blood on it but as he jumps on the 3 headed monster, you can see a clean shiny sword (no more blood on it).
Continuity mistake: Madmartigan's red and blue hair braids switch sides when he is turning into a pig.
Continuity mistake: When General Kael takes the baby to Nockmaar Castle, it has an extra 'turret' on the left-hand side, which has disappeared when Willow and Fin Raziel face the castle later on. (01:31:40 - 01:41:15)
Continuity mistake: When they've found Madmartigan in the cage, Burglekutt decides to leave. Willow then places his hand on Vohnkar's shoulder and puts it down when Burglekutt says "It's not his decision". When it cuts, Willow's hand is back on Vohnkar's shoulder. (00:27:25)
Revealing mistake: When Willow and Madmartigan are cornered in the ruined castle, the general with the skull helmet gets Alora and rides from the battle with her. In several shots it is very obvious that he is holding an empty blanket.
Continuity mistake: When they let Madmartigan out of the cage he grabs Elora and swings her through the air. It cuts to a close-up of her and you can see Madmartigan holding his hand on her chest. When it cuts his hand is on her back. (00:34:40)
Continuity mistake: When the midwife runs off with Elora, the baby is practically bald. The "dogs" are immediately sent out for them (as you can see and hear the Queen ordering on screen), but they don't catch up until the baby has grown a full head of red hair. Even the fact that you see the midwife struggling through snow to a green forest, supports this. She is going over the mountains (looking down on the castle), and her pursuers still are not able to follow the tracks she left in the snow.
Revealing mistake: When they are escaping in the wagon and the last warrior falls off you can see the wagon's tracks as well as the thicker truck's tire tracks pulling the wagon. (00:50:20)
Continuity mistake: When the general leaves the castle with Alora, his sword is in his right hand. He battles with his sword in his left hand (no sign of Alora in either hand) then rides off with it in his right hand.
Revealing mistake: In the scene when Madmartigan (dressed as a woman) and Willow are being chased in the cart, they jump over a log laying across the road. One of the horse's feet lands on the log, and it squishes, like it was a hollow rubber or plastic log.
Continuity mistake: When Willow rows out to Raziel's island, he is bone dry, but when the next scene inside the hut opens, he is soaked. In the novel based on the original script, there is a scene of a lake monster which attacked Willow and Raziel as they returned to shore; they shouldn't have cut it out, I think... .
Revealing mistake: When Madmartigan is in the cage, Willow tries to stop a horse rider from riding past. The path the rider travels on looks the same in both directions. (00:30:05)
Continuity mistake: The size and look of the lump of mud and grass Elora floats on down the river differ between several shots. (00:05:00)
Continuity mistake: When Kaiya asks Willow if they should tell the Village Council about Elora, as Willow passes Kaiya, her hand is resting beside Elora. When it cuts to a close-up of Elora, Kaiya's arm is suddenly supporting Elora's head. (00:08:35)
Continuity mistake: Inside the cage, Fin Raziel talks to Madmartigan and Willow but Willow disappears in the angles shot from behind, even when he is fiddling with his wand it should protrude and be visible.
Continuity mistake: When Fin Raziel talks to Madmartigan and Willow inside the cage, Mad's left hand is resting on his knee in the angle shot from behind, but in a totally different position in the rest of the front shots. This swaps back and forth all the time.