Trivia: Undefeatable

  • Colbert Bump: Allison Pregler probably gave this and many other Rothrock movies exposure to younger, Internet-savvy audiences.
  • Cut-and-Paste Translation: One was done of this film into the Hong Kong version Bloody Mary Killer. Yes, Godfrey Ho doing the reverse of what he did in his ninja flicks...
  • Hey, It's That Guy!:
    • Some of the actors in this film have worked with Ho on another film called Honor and Glory:
      • Nick DiMarco is Jason Slade turned good.
      • Mike (Gerald Klein) was a "dime store pimp" that worked for Jason Slade.
      • One of Kristy's friends played Jason Slade's bodyguard Hideo.
      • Sexy psychiatrist Jennifer (Donna Jason), was one of the female leads.
    • Bloody Mary Killer (see above) has a subplot featuring Robin Shou (who also played Liu Kang in the Mortal Kombat movies).
  • Stunt Casting: Depending how much of a celebrity you see Cynthia Rothrock as.