Kellan Lutz chatted with his brother while taking his pups Kola and Kevin for a walk near his LA home yesterday. The actor changed into a tux by the evening so he could attend the Costume Designers Guild Awards along with other stars like Demi Moore, Halle Berry, and Claire Danes. Kellan's Twilight costars, meanwhile, have been spotted leaving California in recent days. Robert Pattinson and Kristen Stewart arrived in Vancouver together earlier this week to prep for a return to work on Breaking Dawn. Dakota Fanning likewise headed out of town just before her 17th birthday. Kellan may bare his famous abs in their upcoming movie, but he's also front and center in hot shirtless scenes in his new film Immortals.