'Dune': David Lynch on Why His Film Is Not Like ‘Star Wars’ (Flashback)

'Dune' turns 40! Director David Lynch and Kyle MacLachlan spoke with ET in 1984 about the first on-screen adaptation of Frank Herbert's best-selling novel, 'Dune.' David explains why his film is not like 'Star Wars' and Kyle talks about his first ever on-screen role. Plus, author Frank Herbert shares what it was like watching the crew create 'Dune's massive sandworms.