Dune (1984) was cool.
Actually, I agree. David Lynch has a style of filming that is uniquely his own. And I thought the knifefights between Kyle MacLachlan and Patrick Stewart and between Kyle MacLachlan and Sting were pretty cool, too. And after this one and the 2000 TV miniseries, there's a 3rd attempt upcoming to convert Herbert's book into film.
There's also a documentary out now about Alejandro Jodorowsky's aborted attempt to film the book in the 1970s.
I read somewhere that George Lucas ripped off a lot of ideas from that pre-production of the aborted Dune (197?)
movie and included them in his Star Wars (1977)
film, which included the Tatooine desert dune setting, lightsabers instead of force shields during the knife fights, the Empire instead of House Harkonnen, Luke Skywalker and the Force instead of Muad'Dib and the Weirding Way, etc.