Would you believe it - humble little George Butters (George Formby) is a dead ringer for the famous South American tenor and opera star Gilli Vannetti! When Vannetti runs off, George boldly steps into his shoes and pretends to be the great man to save the day! There's just one snag - George can't sing opera... Adding to George's problems, he's being followed by two inept hit men - Swifty and Slappy (Ronald Shiner and Alf Goddard) - and he's falling hopelessly in love with Vannetti's personal assistant Miss Carole (Linden Travers)! George may not be able to sing opera - but he can certainly belt out a top comedy novelty number and South American George includes four great songs from the Formby repertoire - 'Barmaid Of The Rose and Crown', 'Swing Mama', 'My Spanish Guitar' and 'I'll Do It With A Smile'.