by Charles Webb

"Sin City: A Dame to Kill For" is the fifth collaboration between actress Jessica Alba and Robert Rodriguez (who co-directed the film with "Sin City" creator Frank Miller). Between the green screen-heavy worlds and crazy action, MTV News wanted to know what kept Alba coming back for more - and during a recent L.A. junket for the film, we asked just that.

"How can you not, he's so inspiring!" Alba said.

Ten years after the first "Sin City," Rodriguez asked Alba to once again don the chaps of dancer Nancy - now a troubled alcoholic following the suicide of her savior/lover John Hartigan (Bruce Willis) in the first film. And that meant more timeon virtual sets, more time playing to the noir-infused dialog straight from Miller's comic scripts - something even co-star Josh Brolin says he struggled with during his time on the film.

But for Alba, she saw working with Rodriguez and within the unique world of "Sin City" as an opportunity.

"He really creates a world and a universe that's like nothing else," Alba said of working with the director. "And as an actor, he doesn't see any limitations on your capabilities or what you can do. He's constantly challenging the status quo and pushing the limits, so it's great to be part of it."

Does that mean Alba would be up for a third go-round as Nancy (presuming she survives "A Dame to Kill For")?

"Absolutely," Alba said. "Hopefully, it won't be in ten years. Hopefully, it'll be sooner than that."

"Sin City: A Dame to Kill For" is in theaters now.