The answer is a very different type of film.
The 3D printed mount allows German filmaker and journalist, Jonas GInter to attach six GoPro cameras with each facing a different direction. When the cameras are set to fish eye mode, Ginter is able take footage and stitch it all together so that the final video appears to show tiny planets.
The below video was made by Ginter using this technique for stroller and car seat brand, Cybex.
Ginter has made other videos in this same style, such as the below where he is riding a bike with an abnormally large head and another for the Red Bull Alpenbrevet, Europe's largest moped ride.