- Adaptation Displacement: The original One Million B.C. with Victor Mature and Carole Landis largely vanished from the culture after this version came out. Probably this was because Ray Harryhausen effects were such an improvement on the original's Slurpasaur approach, as well as the increasing Values Dissonance with its use of actual fighting animals.
- Awesome Music: At times, Mario Nascimbene's soundtrack feels like it belongs to a biblical epic.
- Best Known for the Fanservice: The film is mostly remembered for the poster showing Raquel Welch in a Fur Bikini.
- Just Here for Godzilla: There are two things in this film that people care about — Ray Harryhausen's dinosaurs and Raquel Welch in a Fur Bikini. The plot and characters such as they are tend to be ignored.
- Narm Charm: A lot of moments that are supposed to be scary have this.
- Nightmare Fuel: After killing their mother, the Rhamphorhynchus proceeds to eat the baby Pteranodons alive.
- Retroactive Recognition: Tumak's father and chief of their cavemen tribe? That's the future boss of the James Bonds played by Roger Moore and Timothy Dalton, Robert Brown.
- Signature Scene: Raquel Welch being carried off by a Pteranodon.
- Tear Jerker:
- The funeral for the Shell tribe man who got killed.
- A weird example, but it's hard not to feel bad for the Pteranodon family. The mother is killed by a Rhamphorhynchus when all she wanted was to feed her babies. Her babies are promptly eaten alive by her killer.
- Visual Effects of Awesome:
- Ray Harryhausen's dinosaurs, while dated, are still a delight to watch. The man produced some of the very best Stop Motion in movie history, after all.
- The giant turtle. Admit it, you thought they used a real turtle when you first saw it.
YMMV / One Million Years B.C.