Share 'Tom Hanks: Ya Gotta Hear the Story He Told at Michael Clarke Duncan's Funeral'

Tom Hanks gave a GREAT speech at Michael Clarke Duncan's funeral ... retelling a story M.C.D. had told him about why the enormous actor joined (and then unjoined) a Chicago street gang when he was a kid. Hanks -- who co-starred with Duncan in "The Green Mile" -- had the crowd roaring with laughter ... a touching tribute to his old friend. As we previously reported, the private ceremony took plac…