What was the first full-length animated feature film?

The first full-length animated feature film is "Snow White and the Seven Dwarfs," which was released by Walt Disney Productions in 1937. This groundbreaking film is significant for several reasons. It was not only the first animated feature to reach theaters, but it also marked a key moment in animation history, demonstrating that animated films could be a viable medium for telling complex stories aimed at both children and adults. "Snow White" was a substantial financial success and set the stage for future animated films, establishing Disney as a leader in animation. The film's innovative use of Technicolor and its emotional depth, combined with memorable characters and music, helped to elevate the animation genre and broaden its appeal. Other films mentioned in the choices were released later and built upon the success established by "Snow White."