This is the 3rd, and most recent, in the three films I've seen by controversial director G.W. Pabst, after his extraordinary silent classics, 'Pandora's Box' and 'Diary of a Lost Girl', both starring legendary screen goddess Louise Brooks. It's the English-language version of 'L'Atlantide', itself a sound-remake of the '21 silent film by Jacques Feyder, and, by being mostly shot on location in the Sahara Desert, went against the grain at the time of shooting movies exclusively in studio.
In Brigitte Helm, mainly known for her starring role of Fritz Lang's sci-fi magnum opus, 'Metropolis', he had a stunning villainous female, who would have made a great femme fatale, had she continued on the following decade in film noir. The script is nondescript and a tad melodramatic, and the other actors are decidedly pedestrian, but Pabst's visual elan and directorial genius shines through and lifts an otherwise drab picture. Worth your time if you're a fan of adventure films of the era, however.