Other mistake: The shape of the crystal shard is all wrong. In a flashback scene a urSkek is seen "shattering" the original, pure crystal by hitting it with a rod on one of the crystal's flat surfaces. For argument's sake we will say that in their universe it would be possible for this to create a spear-shaped hole in the crystal. However, the top of the shard is a rounded surface; it should have a flat, slanted top to match the top of the hole it came out of. Could pieces have broken off the top of the shard to give it the rounded shape? If that were true the final solution would not have worked; only the whole, pure crystal would restore the urSkeks.
The Dark Crystal (1982)
1 other mistake - chronological order
Directed by: Frank Oz, Jim Henson
Starring: Frank Oz, Jim Henson, Dave Goelz, Kathryn Mullen
Visible crew/equipment: When the evil birds send the big beetle-like monsters out to look for Jen, they run into a tunnel. When the beetles run to the camera you can see that between their legs, there is a pair of human legs.
Narrator: Another world, another time, in the age of wonder. A thousand years ago, this land was green and good - until the Crystal cracked. For a single piece was lost; a shard of the Crystal. Then strife began, and two new races appeared: the cruel Skeksis, the gentle Mystics. Here in the castle of the Crystal, the Skeksis took control. Now the Skeksis gather in the sacred chamber, where the Crystal hangs above a shaft of air and fire. The Skeksis with their hard and twisted bodies, their harsh and twisted wills. For a thousand years they have ruled, but now there are only ten. A dying race, ruled by a dying emperor, imprisoned within themselves in a dying land. Today, once more, they gather at the Crystal as the first sun climbs to its peak. For this is the way of the Skeksis. As they ravaged the land, so too they learned to draw new life from the sun. Today, once more, they will replenish themselves, cheat death again, through the power of their source, their treasure, their fate - the Dark Crystal.
Trivia: Augra, the horned being with curly hair, is the guardian of Thra who was initially possessing both male and female attributes-but most of the male part of her was lost while viewing the Universe. She still sports some whiskers on her face to show that she's still not entirely either gender.
Question: When Jen looks at the shard, he sees in image of a Skeksis striking the crystal, but why when the beings of light appear, do they say that they were the ones responsible for shattering it?
Answer: The skeksis and the beings of light are the same, each being a different side (good and bad) therefore it was there evil side (the skeksis) that struck the crystal.