Enter the Dragon/Trivia

The Danza:
- Lee, played by Bruce Lee.
- In an inversion, actor Yang Zse took the stage name of Bolo Yeung to cash in his sudden exposure in this film as the villainous Bolo.
Executive Meddling:
- In the original script, Roper dies and Williams survives. This was reversed by John Saxon's agent to land him a bigger part; it was not an example of racist executives.
- Lee, playing a secret agent, wanted to use a gun in at least one scene. See Why Don't You Just Shoot Him? below.
Hey, It's That Guy!: One of the thugs that assaults Roper on the golf course is Pat E. Johnson, a student of Chuck Norris best known as the referee from The Karate Kid.
- And Jackie Chan is a Mook who gets his neck snapped by Bruce Lee. Considering his age at the time and the fact that he's an extra, it is difficult to tell.
  - It's easier to spot once you know when it occurs (it happens as Lee infiltrates the lab, and is the only Neck Snap to occur during that scene)
- Lao Che is Lee's master at the Shaolin Temple.
- The Big Bad from Bloodsport practically plays the same character but as The Dragon. This one is easy to notice since he apparently didn't age between 1973 and 1988.
- Sammo Hung is Lee's sparring partner in the opening scene.