I Mobster was brought to the screen by Roger Corman, with a script by Steve Fisher based on Joseph Hilton Smyth’s novel. The film features performances from Steve Cochran, Lita Milan, Robert Strauss, Celia Lovsky and John Brinkley, and it's presented in CinemaScope, accompanied by music composed by Gerald Fried and Edward L. Alperson Junior, and filmed by Floyd Crosby. Corman entered the world of film noir and cri…