The “While You Were Sleeping” starlet chatted on her mobile phone outside the house, sporting a white top and dark wash jeans.
Ms. Bullock recently took a trip to the Grand Teton National Park with her pal and “Proposal” costar Ryan Reynolds.
An inside source told press Sandra and Ryan “are like family, like a brother and sister.” Another friend added, “It was a big group of friends. They’ve been buddies for over 10 years now.”
Enjoy the pictures of Sandra Bullock back in Los Angeles after her Wyoming vacation 8-23-11.