Celebrity sightings: Sandra Bullock, Naomi Watts, Amanda Seyfried, Sammi "Sweetheart" Giancola, Ali Larter, Katherine Heigl, and Sean Preston Federline.
Naomi Watts and Liev Schreiber hang out in a Brentwood park with their boys.
Britney Spears and Kevin Federline cheered on their oldest son Sean Preston at his Little League game on Saturday afternoon.
Ali Larter shows off her newborn son Theodore.
"Jersey Shore" star Sammi "Sweetheart" Giancola celebrates her 24th birthday at Chateau Nightclub in the Paris Hotel in Las Vegas.
Katherine Heigl was snapped out and about with friends in Los Angeles.
"Red Riding Hood" actress Amanda Seyfried brought her dog along for lunch with friends at Urth Cafe in L.A.
Sandra Bullock and her adorable son Louis were spotted in NYC this weekend. Sandra is staying in the city while she films her latest movie.
Photo credits: Splash & Wenn