Sandra Bullock Looks Smashing While Out in London | Sandra Bullock

Sandra Bullock on June 12

Hibner.co.uk/Splash News Online

Sandra Bullock Looks Smashing While Out in London

Thursday June 13, 2013 10:55 AM EDT

Whoa, mama!

Leaving son Louis with a babysitter, Sandra Bullock made the most of a night out with friends Wednesday in London – looking smashing in a sexy black Monique Lhuillier dress and red heels.

The Oscar winner, 48, was spotted leaving the Nobu restaurant and heading to the Claridge's hotel in Mayfair.

She's currently in Europe to promote her upcoming crime comedy The Heat, costarring Melissa McCarthy, with whom Bullock has become close.

"Having kids connected us on a deeper level," Bullock told Parade recently. "And the things we’re obsessed with outside of being a mom are the same, too."

The Heat opens June 28 in the U.S.