Russell Crowe thinks Zack Snyder's Man Of Steel is complex.

The 48-year-old actor is set to play Superman's biological father Jor-El in Zack Snyder's comic book movie and he believes the 46-year-old director has a huge responsibility to bring the iconic superhero into the modern day world.

Speaking to Reelz, Crowe said: ''It's very complicated. It's really complex. I don't think anybody has really tried to get into the psychology of what it must be like to be Superman and what people would really respond like in a modern society if somebody like that just popped up.

''I think Zack Snyder was given a great deal of responsibility because, when it comes to comic book heroes and superhero films, the top of the food chain is Superman.''

Crowe further explained that he can't wait to see how the public react to the iconic story.

He added: ''I'm really looking forward to seeing it. It's a massive undertaking. It takes you on the ground to Krypton, it takes you to a planet where the sun is four times larger than ours and you get to experience that stuff.

''If you've seen the trailers you realise that this Superman is not just floating through the air held up by a wire. This Superman is super sonic. I'm really looking forward to the way that people will respond to it.''

Man Of Steel hits cinemas on June 14.