How the failed Dune movie you never saw gave birth to Prometheus

I think dune was epic, but somehow boring as i remember, saw the version from (my beloved) David Lynch. Something went wrong with that movie, though its done (or dune?) with so much love...

I would have loved to see how that version of Dune would have turned out!...........thank God it fell through eh, otherwise no A L I E N & no P R O M E T H E U S.........UNTHINKABLE!!!!!!!!