If you haven't read it yet GP, I highly suggest you do. That book inspired the creation of Star Wars, Warhammer 40K, and Game of Thrones. Probably other scifi and fantasy stories as well. Its an easy read. The movie from the 80s is a rough interpretation (personally not a fan and can't get through it), and the late 90s early 2000s SciFi Miniseries is accurate to the books, but the production, costumes, and CGI are a bit left to be desired (but I quite enjoyed it and have re watched it several times!).