Thanks to Steven Spielberg, I have known for 22 years precisely what to do if I ever saw a dilophosaurus - (run fast) or a brachiosaurus (offer it a leafy branch). With his seminal Jurassic Park, Spielberg provided us with enough info about genetics and dinosaurs to bluff our way through a date with a paleontologist and simultaneously experience what CGI could really do for a movie.

To say it was thrilling is an understatement as no one had ever been that up close and personal to a tyrannosaurus rex. It was in that first film that the late Sir Richard Attenborough played John Hammond, CEO of InGen, a bioengineering company that had cloned dinosaurs to visit in a theme park.

This was Disney with extra bite but you will recall that things didn't go so well after a velociraptor ate one of the park attendants, though that hasn't stopped a new 2015 crew from pursuing Hammond's dream in Jurassic World.

The fully functional prehistoric amusement park of the title isn't as popular as it once was and, to boost dwindling attendance numbers, the scientists, led by director Ron Howard's daughter, Bryce Dallas Howard, have done some genetic meddling and come up with a hybrid that makes the T-Rex look like a pussy cat.

Bigger -12 metres in length - smarter and extremely territorial, the Indominus Rex lives up to his Latin-for-beginners name and it falls to the very likeable Chris Pratt of Guardians of The Galaxy to stop it killing everything it sees or steps on.

Abbreviated to IR, which is more or less the sound his prey make as he devours them, this is a value-for- money dinosaur, and though Jurassic World could never better the first film for CGI veterans, Colin Trevorrow has done a great job with pre-owned subject matter and delivers a fast, thrilling and dinosaur-packed (3D or not) blockbuster for the entire family to scream through.