Two of the most indelible and important gangster movies in cinema history are paired tonight, as a tommy-guns-blazing double feature. James Cagney starts it off at 8 p.m. ET with 1931’s Public Enemy, followed at 10 ET by another crime classic from the same year: Edward G. Robinson in Little Caesar. Pictured here: Cagney’s Public Enemy public service announcement for the Florida Citrus Commission (“A day without grapefruit is a day without sunshine”).