The Three Caballeros is a live-action animated musical package film released by RKO Radio Pictures in 1944. It was developed by Walt Disney and released by RKO Radio Pictures. On December 21, 1944, the picture premiered in Mexico City. On February 3, 1945, it was released in the United States, and in March of that year, it was released in the United Kingdom. The film, which marks the 10th anniversary of Donald Duck, is the 7th Disney animated feature film. It follows Donald Duck on an expedition through Latin America, merging live-action and animation. Following Saludos Amigos (1942), this is the second of Walt Disney Productions' six package films released in the 1940s. It was also the first feature-length picture to combine live-action performers with traditional animation.