George Clooney, John Goodman, Matt Damon, and Bill Murray: The Monuments Men
The Monuments Men was based on a true story of the Allied troops of the Monuments, Fine Arts, and Archives Program, a group that saved art and other culturally important artifacts from destruction at the hands of the Nazis in World War II. Actors playing the fictional soldiers, loosely based on the real-life heroes, included George Clooney (apparently a war movie staple!), Matt Damon, Bill Murray, and John Goodman.
Cate Blanchett, meanwhile, played an art curator based on the real-life French Resistance leader and military captain Rose Valland.