Kangaroo Jack is a 2003 buddy comedy film directed by David McNally from a screenplay by Steve Bing and Scott Rosenberg with a story by Bing and Barry O'Brien. It is also produced by Jerry Bruckheimer with music by Trevor Rabin. The film stars Jerry O'Connell, Anthony Anderson, Estella Warren, Michael Shannon and Christopher Walken, with Adam Garcia as the uncredited voice of the titular character