Trivia / The Valley of Gwangi
- What Could Have Been: O'Brien's original idea for the film -to be titled The Valley Of The Mist- had Gwangi captured in the Grand Canyon, and killed by being pushed off a cliff with a truck.
- Referenced by...: Jurassic Park copied the scene where Gwangi suddenly appears from behind a hill and snatches a running dinosaur using his mouth.
- A clip from the movie was used in a "News Flash" game on Whose Line Is It Anyway?. Bonus points for Colin Mochrie getting the movie's title.