Matt Damon and wife Luciana traveled from LA to Boston with three of their kids yesterday. Isabella, Gia, and their youngest, Stella, were in coordinating pink tracksuits to make the cross-country flight. Matt and Luciana's oldest, Alexia, didn't make the trek with her family. Matt was on the West Coast working on his latest project. Matt Damon was in '70s costume to shoot Behind the Candelabra, a biopic about the late singer Liberace, played by Michael Douglas, directed by Steven Soderbergh. Matt and Steven are frequent collaborators, having worked on the Ocean's series and last year's Contagion. Behind the Candelabra is scheduled to air next year at some point on HBO. While on the West Coast, Matt and his girls caught up with their pals the Afflecks. Ben Affleck, Jennifer Garner, and their three kids visited Matt and Luciana's house last weekend for a pool party.