“R-I-C-O, Little Caesar, that’s who!” Edward G. Robinson bellowed into the phone and Hollywood got the message. The 37-year-old Robinson, not gifted with matinee-idol looks, was nonetheless a first-class star. Little Caesar is the tale of pugnacious Caesar Enrico Bandello, a hoodlum with a Chicago-sized chip on his shoulder, few attachments, fewer friends and no sense of underworld diplomacy.