I remember The Dark Crystal as fairly dark and creepy, but apparently the final version wasn’t as dark and creepy as Jim Henson and Frank Oz originally intended. Now an obsessed fan’s own edit restores the darkness and the creepiness:
The earlier cut didn’t test well with audiences, so the film was substantially changed to appeal to a broad audience. Voiceover was added, and English dialogue was added to many scenes where the action was previously supposed to be understood through puppets’ pantomime.
For the past two years an enterprising fan, 31-year-old Christopher Orgeron, has labored to reassemble that original cut of the movie. He had limited materials to work with, so there are rough edges in many places (most notably the black-and-white scenes from a VHS dub of the original cut).
Speaking of obsession, there is a whole forum dedicated to Star Wars fan edits.