The 747 involved in the Gigantosaurus fracas was retired British Airways 747-236B G-DBXJ. It was modified for use as a prop in the movie Casino Royale. Its inboard engines were replaced with a mock-up of a pair of engines and its outboard engines were replaced with simulated fuel tanks. It was given the fictitious registration N88892 and was located at Dunsfold.
This episode is not Nigel Marven's first run in with dinosaurs, he has starred in and presented several Walking with Dinosaurs specials and in his own time travel Dino-centric series 'Prehistoric Park'