After playing a minor role in 1936's Valiant is the Word for Carrie, gangling juvenile actor Jackie Moran was "discovered" by producer David O. Selznick. Put under contract by Selznick, Moran landed the prize role of Huckleberry Finn in 1938's The Adventures of Tom Sawyer. His subsequent Selznick films included Gone with the Wind (1939, as Phil Meade) and Since You Went Away (1944, as Johnny Mahoney). During this period, Jackie was frequently loaned out to other studios: most of his "outside" projects were routine, with the exception of the 1939 Universal serial Buck Rogers. Jackie Moran retired from acting in 1947.
~ Hal Erickson, All Movie Guide