Yellow Submarine

In the animated film "Yellow Submarine" released in 1968, the residents of Pepperland face the threat of the Blue Meanies, who turn everything dull and lifeless. The Beatles are summoned to help, and they travel to Pepperland in a yellow submarine to save the day. Along the journey, they encounter colorful characters and musical adventures, ultimately spreading happiness and defeating the Blue Meanies with the power of music and love.