What will it take to greenlight a sequel?

Engineering
MemberOvomorphJune 13, 20121282 Views11 RepliesWhat do you think it will take for Fox to greenlight a sequel? How much money? Good reviews?
Does anybody pay attention to how much films make and if they were successful in launching a franchise? Anyone know of a few films that proposed a franchise but was unable to do it because it failed at the box office?
Also, how much longer do you think Sir Rid will be able to direct? He looks great at the moment and really shows no sign of slowing but he's doing The Counselor now, he's got Blade Runner on the horizon as well as a few other projects. Will he even be able to do it?
Finally, if RS could only do one, Blade Runner or Prometheus, which would you want?
[IMG]http://i1161.photobucket.com/albums/q507/Engineering211/sig2.jpg[/IMG]