Continuity mistake: When Bastian pushes the monster down the hole, you see Bastian hitting the monster with his right arm stretched out. When it cuts, Bastian hits the monster with his right shoulder. Best seen in slow motion. (00:47:10)
Continuity mistake: When Bastian stands in front of the monster spraying it in the face with a spray can, you see Bastian stretching as far as he can, but he still can't reach any further up than the monster's chest. When it cuts, Bastian's hand is in the monster's face. (00:47:30)
Visible crew/equipment: When Nimbly takes off and flies onto Xayide's wagon, the wires pulling him up are visible. (00:58:35)
Visible crew/equipment: When Nimbly is flying closer to Xayide's wagon you see the wires pulling him up. (00:58:35)
Revealing mistake: Right after Atreyu discovers that Xayide is stealing Bastian's memories we see Atreyu and Falcor sitting on a cliff with an entire landscape in the background. It is easy to see the whole thing is fake, cause the camping place which they sit on shimmer and moves. The camping scene has been shot earlier and is now placed on a fake background, and someone is adjusting the picture. (01:00:15)
Revealing mistake: When Falkor is talking with Atreyu and says "Bastian is losing himself with every wish," you can see that Falkor hasn't got any body. (01:01:00)
Visible crew/equipment: When the last monster sinks into the ground a black mat covering the hole in the ground is visible. (01:07:30)
Revealing mistake: When Xayide and the monster are sinking to the ground it is obvious the scene is being played backwards as the last monster has leaves falling up from the ground onto it. (01:07:30)
Revealing mistake: When the ground around the empress' castle is tearing apart you can see a tree falling down. However you can also see the wire pulling it down. (01:08:00)
Revealing mistake: When Atreyu lies dead, right before Bastian awakens him, you can see his neck pulsate. (01:12:20)
Revealing mistake: Right after Xayide dies we see a shot of two monsters. One of the monsters explodes and the particles from the explosion hit the other monster making it break in half before it explodes itself. (01:15:25)
Revealing mistake: When Bastian dives, you can actually see that it is a grown up stunt double. (01:18:20)
Character mistake: The spelling of Koreander/Coriander's name varies between the opening credits (spelled with a C), the shop window (spelled with a K), the inner cover of the book (spelled with a K) and the book's text (spelled with a C).