Check out a brand new trailer for Andrew McMahon’s “Dear Jack.” The documentary opens on the day Andrew is diagnosed with Leukemia and continues on through the life-changing and intensely personal events that follow. The film also includes flashes back to Andrew’s childhood, the making of the Jack’s Mannequin album and his collaboration with Tommy Lee, as well as rare live footage and the chronicling of his relationships with two very important people in his life, his sister and her best friend. “Dear Jack” is a raw look at the battle that is Leukemia and the hope that can be found in hard places.