My favorite quote from Ridley Scott on this project that makes the whole enterprise (the word, not the starship) seem worthwhile was when he was recently asked if this prequel to Alien would include the Alien and he responded:
"No. Absolutely not. They squeezed it dry. He (the xenomorph) did very well. (He laughs) He survived, he’s now in Disneyland in Orlando, and no way am I going back there. How did he end up in Disneyland? I saw him in Disneyland!" - via www.aintitcool.com
This is officially a movie we are very interested in.