Ridley and fox will cash in on Prequels

Ahh i understand it now, the reason we didn't get the answers we wanted from Prometheus, I.e, where the S.J's come from and why they crashed on L.V426, is because of Ridley Scott and fox's greed, why when Star Wars had 3 prequels whould Alien only get one, He should have just said the there would be more than one prequel instead of hoodwinking us, shame on him, what a let down!