In this riveting, disturbing 1962 political thriller, the former prisoners of war, played by Laurence Harvey and Frank Sinatra, are the heroes. The U.S. senators, played by James Gregory and John McGiver, are the power brokers. But it’s the women, played by Janet Leigh and Angela Lansbury, who end up being the most memorable of all. John Frankenheimer’s direction, in this story about a very involved assassination plot, is almost hallucinatory in its visuals – and when President John F. Kennedy was assassinated the year after this film was released, it was pulled from circulation – for a generation.