Rosario Dawson's already joined the worldwide "planking" craze -- and a run-in with her led to TMZ's very first newsroom attempt at it ... whether our victim planker liked it or not.



Check out TMZ on TV -- click here to see your local listings!

Exotic brunette beauties Rosario Dawson and Vanessa Hudgens both shined at the same event in Cannes on Thursday.


Question is ...

Rosario Dawson was really thirsty for champagne last night.


The 32-year-old partied it up surrounded by 60 bottles of bub in Cannes on Thursday.

Santé!

"Sin City" stars Carla Gugino, 38, and Rosario Dawson, 31, reunited their faces at the same event in Hollywood on Thursday.



Question is ...

Brunette babes Rosario Dawson and Hayden Panettiere both showed up to the same fashion show in NYC on Thursday.



Question is ...

Our guy couldn't figure out how Mathieu Shreyer tricked Rosario Dawson into dating him -- and Mat seemed surprised himself.

Carmen Electra and new boyfriend Rob Patterson went to Villa last night and signed the bare torso of an excited fan. Haven't we seen those guys before?

Also in L.A.: Rosario Dawson upped her indie cred with KCRW DJ/boyfriend Mathieu Schreyer (though they didn't want to be photographed together), Felicity Huffman talked twins and Mrs. Partridge Shirley Jones was out at Miceli's in Hollywood.

NY was full of hot men: David Beckham looking mayjah in a suit, Jonathan Rhys Meyers rocking a stache and Tom Brady had paps wondering "what's in the box?!"

Rosario Dawson and Rose McGowan partied it up over in Las Vegas and took time to chill with some powerful Hollywood types.

TMZ spotted the movie hotties out early in the night at Cathouse in the Luxor for Frank Miller's surprise birthday party with Rose's director boytoy Robert Rodriguez.

Rosario Dawson says she's moving to Las Vegas -- for the politics. Sure, there's a lot of reasons to move to Sin City -- the gambling, the glitz, the girls. But the "Clerks II" actress says she's buying a place in Vegas because she's uber committed to the upcoming elections.

Nevada's presidential caucus has been moved up, so Las Vegas is primed to play a bigger role in the primaries. "It's an up and coming state!" Dawson told People. Riiight. The slots and the showgirls have nothing to do with it.

"Death Proof" babe Rosario Dawson stopped to take a photograph in NYC with a fan. Fellow cutie Mandy Moore briefly stopped her limo for a fan as well -- but quickly drove off when she noticed TMZ's camera.


Also out in New York were Devon Aoki, a very pregnant Jill Hennessy, hooded Cuba Gooding Jr., and a funny-faced "Chariot" singer Gavin DeGraw. L.A. was less exciting, with a dapper Sean Penn at Mr. Chow, Danny DeVito at Madeos, and the boys of Three 6 Mafia hit up Hyde.

All this and more in today's "Say cheese" edition of Star Catcher.

It got hot and heavy on the dance floor for "Sin City" resident Rosario Dawson and Italian actress/director Asia Argento last week. Mamma Mia!

The two hotties were caught bumpin' and grindin' on the dance floor at Diesel's Live Show party in Florence.

Viva Italia!