Epic based in part on Kurosawa's "The Hidden Fortress" (8)
I believe the answer is:
starwars
(Other definitions for starwars that I've seen before include "George Lucas 1970s epic" , "George Lucas's cult sci-fi film" , "Space fiction film - SDI" , "Series of films, intergalactic battles" , "Strategic Defense Initiative (US) -- sci-fi film" .)