On an Island with You is a swimming movie and a 1948 musical romantic comedy film directed by Richard Thorpe. It stars Esther Williams, Peter Lawford, Ricardo Montalbán, Cyd Charisse, Kathryn Beaumont and Jimmy Durante. Williams stars as Rosalind Reynolds, a swimming star who goes to Hawaii to make a film, bringing along her fiance, Ricardo Montez (played by Montalbán). A military technical advisor for the film (Lawford) falls in love with her. Charisse plays her best friend and fellow movie star, Yvonne Torro, who secretly wants Ricardo for herself.