Dinosaurs on screen: fact or fantasy?

Critics of new film Jurassic World say that the prehistoric creatures look wrong. But how much do we really know about dinosaurs - and when it comes to portraying them on screen, does it matter anyway?

If you ever feel the urge to see well-intentioned dinosaur wrongness in all its glory, take a trip to Crystal Palace Park in south London. Lurking among the trees, shrubs and ponds, you will find the original Jurassic Park - a spectacular Victorian collection of prehistoric creatures in iron and concrete.

The 30 statues were the centrepiece of a geological theme park opened in 1854 under the supervision of Richard Owen, the anatomist who had coined the word "dinosaur" 12 years earlier. Brought to life by artist Benjamin Waterhouse Hawkins and based on the latest scientific discoveries, they were the first life-size model dinosaurs and the public loved them. Sadly, history hasn't been kind to Owen's endearing, but widely inaccurate, creations.