There are rumors that Soderbergh's pal George Clooney makes an appearance in the film. Grey won't say:

"I'm not going to give the details to that. You'll have to wait and see it yourself. Why would I ruin things?"

Grey also won't tell me whether she makes more money in porn than she did with Soderbergh. But "The Girlfriend Experience" is the first time she'll earn financial residuals, she says. She'll also get residuals from a sex-reality show called "Sun Goddess: Malibu."

"Why don't we get residuals? That's a good question," she says. "I've been asking that for a long time. Essentially, we're all day players. We're independent contractors. You shoot once, you get paid once."

In the "regular" movie business, Grey also stars in two Lee Demarbre-directed alt movies this year. But she's still doing many uninhibited things in porn, while building her Web site, SashaGrey.com, into a multimedia site, including, but beyond, sex.

"I enjoy being able to have a foot in each door," she says. "I know many people would say porn isn't creative, but that's my entire outlook on it. And that's my entire outlook on quote-unquote 'mainstream cinema.'"

But this weekend, Grey -- 2008's Best Female Performer in porn (AVN Awards), who also can be seen in spreads now for BlackBook and soon in Flaunt -- focuses in on Vegas for her birthday at Tao. What can club-goers expect to see of her?

"I'm not a crazy person, so don't expect me to flash my boobs or my ass or something stupid like that," she says and laughs. "It's gonna be fun. I think everybody should come out and celebrate."

Grey is a fascinating interviewee. She comes off as smart, confident, sober, serious yet she laughs a good bit. For the rest of my interview with her -- ranging from her Catholic upbringing to her take on conservatives and high-def porn -- check out my blog.

She walks the red carpet at 10 p.m. Saturday at Tao.

VEGAS TO-DO'S

* Outkast's Big Boi walks the red carpet at 11 tonight at Pure in Caesars Palace -- then performs inside the club.

* Alt-rock's Switchfoot performs at 10:30 p.m. Saturday at LAX at Luxor.

* Whitney Port from MTV's "The Hills" walks the red carpet at 10 tonight at The Venetian's Tao, then "throws a bachelorette party for her sister," so says the club.

* Paul Oakenfold spins during his Perfecto residency at Rain in the Palms on Saturday night, with opening DJ Swedish Egil.

* Pre-St. Patty's Day shenanigans will be going down in full force Saturday, including at Nine Fine Irishmen at New York-New York and Green Valley Ranch's Quinn's Irish Pub. There's a beer fest at MonteLago Village 3-7 p.m. Saturday ($20 gets you in and lets you sample beers), a fundraiser for the Muscular Dystrophy Association of Southern Nevada.

* Free beer! Stoney's North Forty country spot in Santa Fe Station lets you drink free beer 7:30 p.m.-midnight every Friday, but there's a $5 cover. When I was in college, we called that "Drinkin' with Lincoln."

* And in today's Neon, Tiffany and I chat, plus find everything going on in Vegas this weekend, including Terry Fator, Neon Reverb concert fest, Cut Copy and more.

What do you think? Tell me at delfman@reviewjournal. com, or post a comment at reviewjournal.com/elfman. My column runs Sundays, Mondays, Tuesdays and Fridays.