Despite using many CGI enhanced shots, all the dinosaurs were hand-puppets, because the director wanted to recreate the 70's era special effects.
Many of the characters names are referencing real life and fictional people connected to the dinosaur genre. Such as:
- Tyler (heroes sidekick): Doug McClure's character from The Land That Time Forgot (1974)
- Dietz (the main villains henchman): Anthony Ainley's character from The Land That Time Forgot (1974)
- Roxton (one of the mercenaries: One of the leading characters from Arthur Conan Doyle's novel The Lost World (2001)
The dinosaur sounds were a mixture of different animal sounds and the voice of director Chris Bucher