https://github.com/davepinch/pinchy.cc/blob/master/content/topics/works/magazines/the-strand/vol-5/page-413.md
It is primarily a parody of the original Star Wars trilogy, but also parodies other sci-fi films and popular franchises including Star Trek, Alien, The Wizard of Oz, 2001: A Space Odyssey, Planet of the Apes, and Transformers.