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. The movie makes an attempt to study the nature of good and evil in terms of conscience, destiny, and the triune nature of harmony.