Warner Bros. Pictures has released the first trailer for Clint Eastwood’s song-and-dance film “Jersey Boys,” which is based on the Tony Award-winning smash hit about 60s singer Frankie Valli and his chart-topping group “The Four Seasons.” The film stars John Lloyd Young, Erich Bergen, Vincent Piazza, Michael Lomenda, and Christopher Walken. Clint Eastwood’s big screen version of the Tony Award-winning musical tells the story of the four young men from the wrong side of the tracks in New Jersey who came together to form the iconic ’60s rock group The Four Seasons.