The fictional country in Disney Channel’s The Princess Protection Program is Costa Luna.
In the 2009 film, Princess Rosalinda María Montoya Fioré is preparing to become queen of Costa Luna when General Magnus Kane, dictator of neighboring Costa Estrella, invades. An agent of the Princess Protection Program rescues Rosalinda and hides her in Louisiana under the name Rosie Gonzalez.
Costa Luna is a fictional monarchy created for the film, so it is not a real-world location. The plot’s Latin-influenced names and setting can make it sound like an actual country. Costa Estrella is another fictional nation in the story, but it is the neighboring country ruled by Kane, not Rosalinda’s homeland.
The movie pairs Demi Lovato as Rosalinda/Rosie with Selena Gomez as Carter Mason. Their friendship and Carter’s plan to disguise herself as Rosie drive the climactic rescue and help restore Costa Luna’s royal government.