Monte Carlo is a 1930 American pre-Code musical comedy film, directed by Ernst Lubitsch. It co-stars Jack Buchanan as a French Count Rudolph Falliere masquerading as a hairdresser and Jeanette MacDonald as Countess Helene Mara. The film is notable for introducing the song "Beyond the Blue Horizon", which was written for the film and is first performed by MacDonald and a chorus on the soundtrack as she escapes on the train through the countryside. Monte Carlo was hailed by critics as a masterpiece of the newly emerging musical film genre. The screenplay was based on the Booth Tarkington novel Monsieur Beaucaire.