I'm just quoting reviewers who see this serial as the precursor to Indiana Jones. Except for pleasant childhood memories of Flash Gordon, I'm usually bored with serials. The repetitive nature and exposition of serials is unintentionally funny though eventually a drag. Still, Lost City has some exciting, exotic locals and has that "Star Wars" credits and text that travels up the screen. And it stars Lionel Atwill, Key Luke, Jane Addams!Also it fully exemplifies what the TV show "Batman" was making fun of(and hence why Indiana Jones is ridiculous). I'm not a historian of serials, but if you want to watch or own only one, I recommend this one.