Brigitte Helm in “Mistress of Atlantis,” (1932), which placed Atlantis as a lost city in the center of the Sahara Desert. It’s in a now-dead genre, the “H. Rider Haggard’s She-rip off” about a powerful sorceress queen of a lost city who falls in love with explorers.
Brigitte Helm is best known as Maria/the Robot from Fritz Lang’s “Metropolis” (1927).
Because sound movies were so new, “Mistress of Atlantis” was filmed three times: in English, French, and German.
Fun fact: Brigitte Helm was in a serious traffic accident and was accused of manslaughter. However, Adolf Hitler, a big fan of her movies, personally signed her pardon.