All space empire movies are a rip-off of
Star Wars; Star Wars is a rip-off Herbert's
Dune; Dune is a rip-off of Asimov's
Foundation; Foundation is a rip-off of Raymond's
Flash Gordon; Flash Gordon is a rip-off of Nowlan's
Buck Rogers; Buck Rogers is a rip-off of Burrough's
John Carter of Mars; John Carter is a rip-off of everything written by
Jules Verne