Two trailers for the 1935 Mascot serial "The Phantom Empire." The first trailer appeared at the end of Chapter #2 to urge kids to keep coming back each week for more. They did!
I originally watched this Gene Autry serial one chapter at a time on the late, lamented “Matinee at the Bijou” program on PBS. It made a huge impression on me. An underground kingdom! A death ray! Robots with hats! And standing in their way? A singing cowboy.
It’s really awesome.