Comment by andrekandre

if you watch the documentary "jodorosky's dune" he goes over it, and basically boiling down to the studios "liking the concept" but "not getting the director" especially that he wanted total creative freedom and to make the movie as long as he saw fit, but studios wanting a smaller budget and 90mins etc

btw, the incredible storyboards for dune are a feast if you can bits that are floating around