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Thandie Newton is practically perfect in Temperley London at the premiere of her new romantic comedy Run, Fat Boy, Run at the Rusty Knot on Thursday in New York City.

The 35-year-old British actress rubbed shoulders with actor-turned-director David Schwimmer and Picturehouse President Bob Berney at the film’s after-party.

Synopsis: A chunky, clueless guy leaves his pregnant fiancée on their wedding day only to discover — 5 years later — that she is his one true love. But in order to win back her heart, he looks to finish his first marathon while making her realize her new man is the wrong guy for her.

Run, Fatboy, Run opens in theaters nationwide on Friday, March 28.

Hmmmm, what’s below Thandie‘s nose?

20+ pictures inside of Thandie Newton @ the Run, Fat Boy, Run premiere… More Here! »

Thandie Newton works the orange carpet in a strapless black-and-white number by Nathan Jenden at the world premiere of Run Fat Boy Run at London’s Odeon West End on Monday. Thandie paired her high-contrast dress with Alexander McQueen shoes.

The hottie British actress was joined by co-stars Pegg and Matthew Fenton and director David Scwhimmer (Friends).

In the film, Thandie plays pregnant fiancée Libby, who gets stood up at the altar by Dennis (Simon Pegg). Run Fat Boy Run opens in theaters nationwide on October 26.

15+ pictures inside of the super hot Thandie… More Here! »

Big name celebrities did their best to lip sync and dance to The Bee Gee‘s “Stayin Alive.” Watch the video below!

Celebrities include: Gwyneth Paltrow, Keira Knightley, Sarah Michelle Gellar, Hugh Grant, Teri Hatcher, Kevin Bacon, Hugh Laurie, Dr. Phil, Ryan Seacrest, Helen Mirren, Marc Anthony, Blue Man Group, Chris Kattan, Lisa Kudrow, Jason Biggs, Eric McCormack, Goldie Hawn, Michael Buble, Good Charlotte, Kirstie Alley, Rob Lowe, Emily Blunt, Rob Schneider, David Schwimmer, Miss Piggy, Twiggy, Parminder Nagra, Lebron James, Shaquille O’Neal, Gillian Anderson and Helena Bonham Carter!

Remember to download this video and more from iTunes with proceeds going to charity!