“The Monuments Men,” George Clooney’s WWII set directing feature, comes out on Blu-ray, DVD, and Digital on May 20. The feature, based on the non-fiction book penned by Robert M. Edsel with Brett Witter, centers on the people who risked their lives to save thousands of art and treasures that were stolen by the Nazis. The all-star cast includes Clooney, Matt Damon, Cate Blanchett, Bill Murray, John Goodman, and Bob Balaban.

Two featurettes are exclusive to the Blu-ray release. “George Clooney’s Mission” features interviews with the main actors involved for the project, and “Marshaling the Cast” has the cast talking about the real men and women who inspired the story.

“In Their Own Words” contains an interview with Harry Ettlinger, one of the surviving members of the group, and “A Woman Amongst the Monuments Men” has Cate Blanchett talking about the character she played in the project. Both featurettes are available on the Blu-ray and DVD versions.

Here’s the official boilerplate for the film:

Based on the true story of the greatest treasure hunt in history, THE MONUMENTS MEN focuses on an unlikely World War II platoon, whose job it was to rescue artistic masterpieces from Nazi thieves so they could be returned to their rightful owners.  In a seemingly impossible mission, the Monuments Men, as they were called, find themselves risking their lives in a race against time to avoid the destruction of 1,000 years of culture.