Actor Gregory Peck will receive the 1989 American Film Institute's Life Achievement Award, the organization's chairman said. Peck, who received an Academy Award for "To Kill a Mockingbird" in 1962, will be honored March 9 at the institute's annual award dinner at the Beverly Hilton Hotel. The event will be broadcast on NBC. Peck began his acting career in 1939 and took off in various Broadway productions, including "Morning Star" and "Sons of Soldiers." He received Academy Award nominations as best actor for "The Keys of the Kingdom," "The Yearling," "Gentleman's Agreement" and "Twelve O'Clock High." His portrayal of Southern lawyer Atticus Finch in "To Kill a Mockingbird" won him his fifth nomination and the Oscar. Previous Life Achievement winners include Jack Lemmon, Barbara Stanwyck, Billy Wilder, Gene Kelly, Lillian Gish, John Huston and Frank Capra.