Ryan and Todd discuss the generic development of science fiction cinema while also addressing its philosophical implications. They include a deeper analysis of Metropolis, The Thing From Another World, Forbidden Planet, and 2001: A Space Odyssey.
See:
Voyage to the Moon: https://www.youtube.com/watch?v=xLVChRVfZ74
Metropolis: https://www.youtube.com/watch?v=W_4no842TX8
Phantom Empire: https://www.youtube.com/watch?v=7Qbf6KX8O98