Enjoyable but never outstanding World War Two espionage adventure based on the real-life experiences of British double agent Eddie Chapman. Christopher Plummer stars as the cynical hero with an eye for the ladies, while Yul Brynner and Trevor Howard also number among the decent cast. Director Terence Young plays this slightly tongue-in-cheek and it robs the film of its credibility and lessens the obvious suspense. — Britmovie