Chris Pratt found acting with dinosaurs to be ''a breeze''.

The 35-year-old Hollywood hunk - who stars alongside Bryce Dallas Howard in the much-anticipated new sci-fi movie 'Jurassic World' - has revealed he found it easy starring alongside invisible dinosaurs after appearing in the 2014 hit 'Guardians of the Galaxy'.

Chris - who stars as Velociraptor expert Owen Grady - said: ''To be honest, after Groot and Rocket on 'Guardians Of The Galaxy', a few dinosaurs are a breeze. What was really fun was getting to approach that character from a real point of view - who would get that job in reality?

''If dinosaurs have been around for 20 years and there's a branch of the park that's all about whether we can get raptors to behave as if they're at Sea World - which will end well, of course - how would someone approach that?''

Chris also revealed the lengths he went to in order to prepare for his on-screen role.

He told ShortList magazine: ''I got to talk to some awesome people who train tigers and grizzly bears, parrots and K9 dogs, in all different applications, from entertainment to war.

''The techniques you see me use are actually real techniques people use on bears and such, which was pretty cool. And, of course, there was a lot of dancing around looking at nothing - a tennis ball or a light, or people in grey suits with raptor heads on - and trying to make it believable. But, as I say, I'm kind of used to it.

''And I hate to break it to you, but none of it is real. So going the extra mile to imagining invisible ancient reptiles really isn't a big leap.''