Though Alec Guinness's name is Wormold and he is the Havana representative of a vacuum cleaner company, he is the hero. This hero, recruited into the British secret service (by dry, hunched Noel Coward-the mandarin as secret agent), has no idea what is wanted of him. He must send in reports however; so he fills them with inventions and fantasies. This satirical comedy turns into a nightmarish thriller when his absurd, phony reports precipitate actual reprisals and murders. Our Man in Havana appears to be, like Beat the Devil, a travesty of the international spy story, but Graham Greene likes to have his pinprick of purpose. In this case, the deep thought that innocence can lead to evil is not likely to keep one up nights. Carol Reed employs the Cuban locations as wittily as the actors....One reason it isn't as good as Beat the Devil is that everything is so beautifully held in check-sometimes a worse movie can be a better movie. But this one has some first-rate sequences and is continuously entertaining.-Pauline Kael