We’re so ready for June 20. Not only is it apparently National Vanilla Milkshake Day, but the Jersey Boys movie finally comes out! In this video featurette, director Clint Eastwood and several cast members, including Tony winner John Lloyd Young, Vincent Piazza, Erich Bergen, Michael Lomenda, Mike Doyle and Christopher Walken, discuss the “great fun” and “nice challenge” of telling the story behind the iconic group for the camera. Take a look below as scenes from the stage jump to the screen, and hear snippets of your favorite Four Seasons showstoppers. Spoiler alert: there’s a pretty decent amount of chair throwing. Oh, and a dancing Clint Eastwood.