These scenes mostly consisted the animatronic Spinosaurus and Tyrannosaurus rex sizing each other up to fight, mostly roars and growls and then finally a slap across the face from the Spinosaur to the T. rex. This scene was seen in the trailer. In one of the behind the scenes documentaries, it shows that extended CGI footage of the battle also exists, with the T. rex holding its own against the Spinosaurus for a short period of time.[citation needed] sizeup1lg.jpg 172.jpg 480.jpg 481.jpg sizeup2lg.jpg sizeup3lg.jpg