Sigourney Weaver was bouncing off the walls at news that she would pocket a record $25 million for going another round with those jaw-dropping slimebuckets in a fifth Alien flick. If only it were true! "The amount was

thrilling," she tells TV Guide Online. "I'm supporting my husband's [Manhattan] theater, so he was thrilled that he was going to be able to sign up for another five-year lease."

It's not just the amount of her paycheck that Weaver's disputing ("I would have to kill a few people to get that salary," she laughs). The Oscar-nominated actress insists that there are no "immediate plans" to do Alien 5. "As far as I know, there is no truth to any of it," she says of British tabloid reports, which surfaced last month. "My agents both called me and said, 'This is in the paper,' and I said, 'You gotta be kidding me!'"

That's not to say that Weaver — who plays a con artist opposite Jennifer Love Hewitt in the comedy Heartbreakers (opening March 23) — would rule out reprising her role as E.T. exterminator Ellen Ripley. "I think if we ever did another Alien, I would prefer that it be on a much smaller, sort of character-driven level," she admits. "If I were more enterprising and less lazy, maybe I would come up with something that would be good. I don't feel it is quite finished."

Incidentally, Weaver confirms that an Alien 5 script featuring a plot that brings the series down to Earth does in fact exist. "I have never read it, and I have never asked to read it," she says. "I think [20th Century Fox's] plan is to make it Alien vs. Predator, and I would just as soon not be in that, although I am sure I could whip them both."

Well, also contrary to reports, said script was not authored by Buffy the Vampire Slayer creator Joss Whedon, who penned the last installment, 1997's Alien Resurrection. "There is not one shred of truth to it," he tells TV Guide Online. "I have no idea where [the rumor] came from. I'll tell you there was a time when I would have been interested in that, but I am not interested in making somebody else's franchise anymore. Any movie I make will be created by me."