I did find this on IMDb trivia-

http://www.imdb.com/title/tt0086190/trivia?tr0745453

When Steven Spielberg saw Paul Verhoeven's Soldier of Orange (1977) he was deeply impressed. He called Verhoeven to tell him he wanted to get him an American project. Years later Verhoeven heard that Spielberg wanted to bring him up to direct Return of the Jedi. To be sure of his talent, Spielberg organized a viewing of his latest feature film Spetters (1980). Spielberg was shocked by the extremely sexual content and never called him again. Verhoeven later said that he thought Spielberg was afraid the Jedis would break their celibacy under his direction.