Sandra Bullock took a break from her latest project, Gravity, in London today while modeling a short wig and holding a script. She was without her costar George Clooney, who's visiting Italy with his girlfriend, Elisabetta Canalis. Sandra's been keeping busy on set between shooting and looking after her son, Louis. It seems George has developed a soft spot for the youngster, as he was spotted taking iPhone snaps of Louis over the weekend. Louis is becoming a pro at hanging out on location already, having joined Sandra and her costar Tom Hanks on the set of Extremely Loud and Incredibly Close in NYC during the Winter.