LOS ANGELES, Oct. 10 (UPI) -- Jim Henson Company chair Brian Henson says his father's 1982 film The Dark Crystal, returning to theaters Sunday via Fathom Entertainment, initiated the company's incorporation of animatronic techniques into their puppetry. Jim Henson created The Muppets, Sesame Street and Fraggle Rock as a puppeteer. For The Dark Crystal , his company developed mechanical apparatuses to make the film's characters move. In a recent Zoom interview with UPI, Brian Henson said