Idris Elba wants to go into space.

The 'Luther' actor fulfilled a long-held ambition when he trained to be a professional kickboxer for documentary series 'Idris Elba: Fighter' and now hopes the Discovery Channel will also fund another of his boyhood dreams.

Asked what he wants to try next, he told Closer magazine: ''To be a spaceman. If Discovery will pay for it then I'll go into space.''

The 44-year-old star is currently filming 'The Mountain Between Us' with Kate Winslet and thinks his fight training has inspired the Oscar-winning actress to push herself more.

He said: ''I think my current co-star is quite impressed actually and has decided to take up Pilates pretty heavily.''

However, his 'Thor: Ragnarok' co-stars Tom Hiddleston and Chris Hemsworth and 'The Dark Tower' co-star Matthew Mcconaughey were not so impressed and felt he was putting himself at risk unnecessarily.

He said: ''I think they thought I was a bit stupid for doing it, because they were like, 'What if you hurt your face or break your arm?' They didn't think it was a smart move.''

Despite his movie success, the British actor - who has 15-year-old daughter Isan and two-year-old son Winston from past relationships - insists he has no plans to relocate to Hollywood.

He vowed: ''I won't be moving out there. I love the UK. I grew up in east London and I love it. That's where my roots will always be.''