The Dark Crystal (1982)

In the age of wonder somewhere in the faraway realm of the innocent Gelflings and the gentle lumbering Mystics, the cruel vulture-like Skeksis have been ruling the land with an iron fist for a thousand years, deriving their power from a life-giving magical crystal. However, with a dying emperor and a vital shard of the gemstone missing, Jen, a fearless Gelfling and the last of his kind, sets off on a perilous adventure to mend the Dark Crystal, as he follows the clues of an ancient prophecy which foretells the end of the evil dictators. But, the dangers are countless, and this is a nearly impossible quest. Heroic as he may be, can a single Gelfling bear the burden of an entire planet's salvation on his shoulders?