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)
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.
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.
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... .
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.
Continuity mistake: During the wagon chase when Madmartigan is going head on head with the other wagon he throws his weapon right at the warrior holding a spear. When he hits him his spear is visible but when it cuts to him actually falling off the wagon the spear has disappeared. (00:51:05)
Continuity mistake: When Madmartigan comes rolling down as a huge snowball and hits the wall, snow splatter through the window and hits Willow's head making his hair wet. But a few seconds later when Willow comes out of the hut his hair is dry. (01:13:20)
Continuity mistake: When Raziel shows Bavmorda that she has Cherlindreas' wand, she is wet from all of the rain. In the next scene, when she says that Elora will be queen, she is now completely dry.
Continuity mistake: When Elora is floating down the river, the close shots show her head standing out of the bundle, but the close shots don't.
Continuity mistake: Willow's shield crashes inside the house and when it comes to a stop, snow suddenly appears on Elora's spotless shroud.
Continuity mistake: When Madmartigan closes the front doors and goes to place the wooden crossbar into the brackets, the right side of the crossbar isn't set inside the bracket, it's flush on the outside, and below the gap. When the shot changes, it's now in the bracket without him lifting it up or anything.