The Graham Greene source novel was a joyful, optimistic affirmation of life and the film gloriously conveys those emotions on to the screen. At his mother's funeral, a naive, mundane middle aged bank manager Henry Pulling (Alec McCowen) meets for the first time the capricious Aunt Augusta (Maggie Smith) who initiates him into an adventure incorporating her many, varied and usually eccentric or criminal associates and friends scattered across the more glamorous cities of Europe. Henry is shaken out of his complacency and led to the unsurprising conclusion that it is the impulsive and resourceful Agatha who is his real mother, and not the conservative woman who brought him up. And he begins to discover the Agatha dormant within. This is a feelgood experience, set in beautiful locations and gorgeously acted by its eclectic cast, particularly Smith and McCowen. It's surprising to me that this film has such a poor reputation. It feels like mainlining nirvana. Unsentimental optimism is a rare commodity on screen and this picaresque, secular pilgrimage delivers its surge of serotonin with a lot of style and wit.