 If the surprise expressed by James Cagney (qv)s fellow inmates  during "the telephone game" scene in the prison dining room appears  real, its because it is. Director Raoul Walsh (qv) didnt tell  the rest of the cast what was about to happen, so Cagneys outburst  caught them by surprise. In fact, Walsh himself didnt know what  Cagney had planned; the scene as written wasnt working, and Cagney  had an idea. He told Walsh to put the two biggest extras playing  cons in the mess