Hollywood star Sigourney Weaver insists there will be no more ALIEN sequels, because the "monster" has simply "maxed out". The 56-year-old actress played ELLEN RIPLEY in the space saga which kicked off in 1979, but after three sequels and PAUL ANDERSON's 2004 release Alien Vs Predator - in which she did not appear - she believes the series can go no further. She says, "The creature has maxed out probably. There are aspects of the character that I miss playing, because you don't see too many women characters like that. "But all of us who participated have gotten so busy doing other things that I kind of doubt we'll go back into space."