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
Directed by: Frank Oz, Jim Henson
Starring: Frank Oz, Jim Henson, Dave Goelz, Kathryn Mullen
Visible crew/equipment: Thin wires are visible, attached to the crystal bats as they fly off to watch Jen and Kira.
Jen: When single shines the triple sun, what was sundered and undone, shall be whole the two made one, by Gelfling hand or else by none.
Trivia: The actors inside of the Skeksis had television monitors inside of their costumes, so that they could see where they were going.
Question: I believe I read somewhere that the worlds are connected by crystals and travel is possible. Is this true and where might I look for the answer?