The Dark Crystal

Another planet, another time. 1000 years ago the mysterious Dark Crystal was damaged by one of the Urskeks and an age of chaos has began! The evil race of grotesque birdlike lizards the Skeksis, gnomish dragons who rule their fantastic planet with an iron claw. Meanwhile the orphan Jen, raised in solitude by a race of the peace-loving wizards called the Mystics, embarks on a quest to find the missing shard of the Dark Crystal which gives the Skesis their power and restore the balance of the universe.

The Dark Crystal is a 1982 fantasy film directed by puppeteers Jim Henson and Frank Oz, creators of The Muppet Show. Although still marketed as a family film, it was notably darker than previous material created by them. Characters for which they are famous do not appear, but some of the same performers are used. The animatronics used in the film were considered groundbreaking at the time. The primary concept artist was the fantasy illustrator Brian Froud, famous for his distinctive faerie and dwarf designs. Froud also collaborated with Jim Henson and Frank Oz for their next project, the 1986 film, Labyrinth which was notably more light-hearted than The Dark Crystal.

Source: Wikipedia