David Kossoff

In a lower-class London community of small shops, open-air vendors and flea-marketers, Joe, a small boy, lives with his mother, Joanna (Celia Johnson), who works in and rooms above the Kandinsky tailor shop. Joe is innocently and earnestly determined to help realize the wishes of his poor, hard-working neighbours.

When a kerfuffle over fine wine exports upends their tiny nation's economy, the prime minister and grand duchess of Fenwick declare war on the U.S.

Cary Grant is the suave American diplomat who pretends to be married in order to preserve his bachelor status. Ingrid Bergman is the glamorous leading lady of the London stage who has no scruples about having an affair with a married man.