Bechdel's Rule can be applied in reverse, although female-dominant films are much rarer:
- At least two men
- Talk to each other
- About something other than a woman
This suggests the generalization can be applied for any two types of beings P and Q (dubbed the Alien Axiom, or Bechdel-prime):
- At least two Q
- Talk to each other
- About something other than P
For example, take P and Q to be Humans and Aliens, or Humans and Robots. Many episodes of Star Trek will fail because the series was primarily the story of the Federation founded by Humans. Babylon 5 frequently passes the test: (1) At least two Aliens (2) talk to each other (3) about something other than a Human.
Try applying the Alien Axiom while watching these films/shows: Avatar, Dark City, Star Trek: Deep Space Nine, District 9, Alien Nation, 2001: A Space Odyssey, Gone With The Wind, X-Men