In the tradition of the Ealing Studios comedies (Kind Hearts and Coronets, The Man in the White Suit) that made Alec Guinness a star, The Horse’s Mouth is a gag-filled portrait of an eccentric artist named Gulley Jimson (Guinness) who lives on a leaky houseboat docked on the Thames. With his paintings in the hands of an ex-wife and a former patron, Gulley divides his time between hatching revenge schemes that utilize his talent for impersonating officials on the telephone and furthering his passion for mural painting by transforming any available bare wall into a site for a new work of art.