Revealing mistake: When he's speaking to Demetrius, Azor turns his back to the camera, and the zipper in his costume is visible.
Revealing mistake: The giant crystal's red beam strikes Zaran at the end, turning him into a skeleton. But the lab specimen used for this effect is a little too obviously just that: you can see the pins holding the bones together, as well as the surgical saw incision in the skull. (01:27:00)