Matt Damon swapped his military gear for a sassy beret and hopped on a white horse to continue work on The Monuments Men today in Buckinghamshire, England. He was joined by one of his costars for the onscreen ride and stopped to chat with friend and director George Clooney between takes. Matt and George have been working on the period piece, set during World War II, since early March, but have parted ways for other professional obligations. While Matt attended the Cannes Film Festival to promote his enticing role as Liberace's lover in Behind the Candelabra, George took a quick trip to LA before arriving on the UK scene. He squeezed in a dinner out in London over the weekend and made headlines when reports surfaced that he was holding hands with a former flame. George quickly shut down the rumors in a statement yesterday before heading to Southern England for more shooting.