Prometheus Script Concept (Stick To "Alien" Cannon)

This was a movie concept that had a lot of potential, but in the end, you end up with crap when you don't stick to the original canon! They could have made this a prequel to where they showed this derelect spacecraft and the sequence of events that lead up to it crash-landing on the alien planetoid (the same one as in the original movie). At the very end, they could have had us humans exploring our galaxy on a routine scientific mission and finding this derelict spacecraft and attempting to take a specimen (the xenomorph) back to Earth when all hell breaks loose. In the end, the location becomes lost to where it is picked up again in the movie "Alien." This would lead you on a rollercoaster ride of a journey that would have two climaxes and would leave you fulfilled.