Cue the hyperventilating, we have breaking Twilight news: "Rob's not pregnant!"

This with a laugh from Montreal actress Rachelle Lefevre, well aware of the absurdity -- and intensity -- of the rumours surrounding the vampire book-to-film franchise and its breakout star, Robert Pattinson, the angular heartthrob with the bed-head and British accent.

Lefevre, who plays vicious blood-sucker Victoria in the adaptations of Stephenie Meyer's bestsellers, is in Toronto shooting a movie opposite Kevin Spacey and prepping to present at Sunday's MuchMusic Video Awards.

But the topic of The Twilight Saga: New Moon is never far behind.

The Vancouver-shot sequel to last year's hit (worldwide gross: $382 million) opens Nov. 20, complicating the romance between star-crossed sex-abstainers vampire Edward Cullen (Pattinson) and mortal Bella Swan (Kristen Stewart) with new characters (Frost/Nixon's Michael Sheen and Dakota Fanning are introduced as members of the Volturi, an ancient vampire coven), a love triangle (created by returning Taylor Lautner as werewolf Jacob) and converging enemies.

At the centre of the pop-culture tsunami are Stewart and Pattinson, magazine cover mainstays whose real-life rapport (romance or no romance?) at times eclipses their fictional one.

"They have fantastic chemistry together on-screen and you know that's the kind of thing that becomes the source of rumours," Lefevre says.

"People want them to be together. People would love to hear that -- that they fell in love on the set and so they read that into everything they see.

"But all I've seen are two people who have beautiful chemistry on-screen and are bonded.

"Kristen, before Twilight, already had a huge resume and had worked with some heavy-hitters, but she had also flown under the radar.

"And Rob, he was in Harry Potter (and the Goblet of Fire), so he had some experience with fame, but it was nothing remotely like this. So when two people go through that experience together -- the fandom and everything -- it's going to bond them."

How is Pattinson adjusting to life under the microscope?

"He's got a really good sense of humour. I've seen him frazzled, but when there were eight paparazzi chasing you and it's just you, it can be scary."

Almost as frightening perhaps as switching directors mid-stream between sequels.

Usually when a film succeeds, a studio clings to its creator.

But in the case of New Moon, Catherine Hardwicke is out, replaced by Chris Weitz (The Golden Compass).

"It could have been bad," Lefevre admits.

"But I think because Harry Potter went through it first to their benefit, we were like, 'The Potter kids went through a director shift and they were okay, so we'll be okay too.'

"And we were. Chris came in with such a clear idea of what the movie was. And he paid respect to what had come before -- so it was kind of seamless."

A third transition will happen later this year in Vancouver when another director, David Slade (30 Days of Night), takes the reins of the next sequel Eclipse.

"It's perfect timing for David because Eclipse is darker than the other two. There's more action.

"It's not a horror movie, but it is darker."

And just as the series evolves, so does Lefevre's role as Victoria seeks to avenge the death of her lover, James.

"In the first movie, because I didn't have as much screen time, I wanted to be very clear.

"I wanted to convey energy and be very present but also very playful. And that's because (Victoria) enjoyed stalking Bella with James.

"But when James is killed, it becomes about exacting revenge, which comes from a totally different place. It's not just a game anymore."

Also beefed up -- literally and figuratively -- is Lautner.

The 17-year-old actor, who played Jacob in Twilight, nearly lost the part because producers worried he was too young and skinny to embody the tougher, more mature Jacob of New Moon.

But Lautner "completely won that role," Lefevre says.

"The day Twilight wrapped, even before we knew there was going to be New Moon, Taylor started working out like an animal.

"He put on 30 pounds of muscle ... I saw some of his dailies and he has a presence that, if you were to watch Twilight and New Moon back to back, he looks like he's aged five years."

New Moon stars at MMVAs

Being part of Twilight is the closest she'll come to being a rock star, Rachelle Lefevre realizes.

So what better place for her to be than at Sunday's MMVAs?

The awards will be co-hosted by the Jonas Brothers and feature, among others, Lady Gaga, Nickelback, Alexisonfire, Billy Talent, Kelly Clarkson and the Black Eyed Peas.

"I've never presented anything before, so I'm just thinking, 'Please God, don't let me fall down,' " she says. "Seeing the Black Eyed Peas live is going to be sick."

Presumably though, there will be at least some Twilighters squealing for her and New Moon co-star Taylor Lautner. Despite that level of fandemonium, however, she says so far she has no outrageous encounters with the faithful to report. Even if being watched in public takes some getting used to.

"I walk down the street with my friends, feeling like I should be singing, 'Somebody's watching me,' " she says, breaking into a few bars of that 1980s pop song.

"But at the end of the day, I'm grateful for the whole thing. And the fans are sweet and loving. It's like being sprinkled with the nicest bit of love everyday."

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