"Unbelievable, it's broken my childhood memories!" he continues. "It got to the end of the film and I said quite loudly, so everybody could hear me, 'There ain't no such thing as a Pakisaurus'. The old man over here, as we're walking out of the cinema, pulls out his phone and says, 'I've just Googled it, have a look.' And he's not even lying!"
Turns out, there is actually a Pakisaurus, named after a dinosaur found in Balochistan, with the scientific name being Pakisaurus balochistani. It's a sauropod, think of something like the massive Brontosaurus or Brachiosaurus, described by MS Malkani in 2006, although it's still not very well known.
In the movie, however, the actors are referring to Pachycephalosaurus, a completely different species that looks nothing like the Pakisaurus or, for that matter, any geographical connection with Pakistan since they were primarily found in North America. In the movie, the dinosaurs' names have been shortened to “pachys” – slang that sounds far too much like a particular British pejorative aimed at people from Pakistan, which is what prompted Guzzy Bear's outburst.