Unity is powerful. The Garment Jungle comes from directors Robert Aldrich and Vincent Sherman, with a screenplay by Harry Kleiner based on Lester Velie’s "Gangsters in the Dress Business." The cast includes Lee J. Cobb, Kerwin Matthews, Richard Boone, Robert Loggia, Gia Scala, and Valerie French; Leith Stevens composed the music, and Joseph Biroc handled the cinematography. Alan Mitchell (Matthews) comes home f…