Usain Bolt hoping for a call from Manchester United boss Jose Mourinho

The world's fastest man joked that he was looking forward to switching lanes and becoming a Manchester United player.

Speaking at the world premiere of the movie I Am Bolt, Usain Bolt said he is looking forward to Jose Mourinho "giving me a call".

The nine-times Olympic champion was in good spirits as his closest friends, parents and sports stars paraded down the red carpet at the Leicester Square Odeon, in central London, in support.

Asked whether he had been approached by the Manchester United boss, Bolt joked: "Hopefully, not yet. Hopefully he'll call me and see what's going on. I'm really excited about that."

Speaking about his plans to retire from the track at next year's World Championships in London next year, he said: "It's big. London is a place where I get a lot of love. It's the right place for me to retire."

I Am Bolt follows the peaks and the pits of the athlete's career, from his first race up to his "triple triple" Rio de Janeiro victory. Fans will get a deeper look into the the setbacks behind Bolt's unrivalled success.

Directors Benjamin Turner and Gabe Turner both relished working with Bolt.

"It was great fun. He was amazing to hang out with - we got to do some amazing things," said Benjamin Turner.

"We were told very early that if we tried to work with him as a work colleague, it's not going to fly. It was one of those jobs where we'd say to our wives 'we're going to Jamaica to hang out for a couple of weeks'. It was joyous," said Gabe Turner.

The 100-metre world record-holder filmed himself for some of the more candid parts of the film, and was open to revealing his less well-known talent for singing.

"He even let us put in the worst singing in the world, when he was singing to R Kelly - I would have taken that out, personally," Gabe Turner said.

Singer Sean Paul said Usain Bolt is his "hero".

The hitmaker was hopeful about his fellow Jamaican's post-retirement future, saying: "The world is his oyster.

"He's an amazing person that blows our mind. As a Jamaican, we need inspiration, to look up to people and stop feeling like we are fighting each other. People like him help to give us a spirit of unity and positivity."