The BEST SF film for decades. Wether you like the book (and I read it years ago) or the David Lynch film or SF films generally or not, this is a superlative adaptation of the classic Frank Herbert novel.
Not so easy I guess if you aren't an SF fan but why watch in the 1st place, except this story is universal, family, friends, loyalty, betrayal, subterfuge- Shakespearian themes all encapsulated on far away alien worlds.
Excellently filmed, the progression and betrayal of the Atreides family by the Emperor as they colonise the mysterious planet of Arrakis, an inhospitable, dry place , inhabited by giant fierce sandworms and the indomitable Fremen.
The planet is the only source of "spice" in the galaxy, a precious substance that assists space travel.
OK, sounds like a load of space waffle but if you like a story with some something less flimsy than the majority of fantasy/SF crap then you are in for a major treat.
Acting is top notch, effects fantastic and the story is engaging and exciting.
I've watched countless SF films, this is one of the best.