Son of Lassie is a 1945 American Technicolor feature film produced by MGM based on characters created by Eric Knight, and starring Peter Lawford, Donald Crisp, June Lockhart and Pal. A sequel to Lassie Come Home (1943), the film focuses on the now adult Joe Carraclough after he joins the Royal Air Force during World War II and is shot down over Nazi-occupied Norway along with a stowaway, Lassie's son "Laddie" – played by Pal. Son of Lassie was released theatrically on April 20, 1945, by Loew's.