UK premiere for Paul Potts film

This report contains pictures from The Weinstein Company, and from Syco / FreemantleMedia

A film about the life of Paul Potts has its UK premiere in London this evening.

The opera signer from Port Talbot was the first winner of ITV's Britain's Got Talent.

James Corden plays Paul on his remarkable rise to fame - from a mobile phone salesman, to a world famous singer.

The film One Chance will be out in cinemas from 25 October.

James Corden plays Paul Potts in One Chance, a film about about the Port Talbot opera singer's life.

Corden told ITV News "it's such an uplifting, moving film", which shows how Potts fought "through so much adversity" and realised his dreams, because he refused to give up on them.

One Chance follows opera singer Paul Potts as a youngster growing up in Port Talbot and being bullied at school, meeting his future wife Julie-Ann, and working at a mobile phone store in Bridgend.

It shows how close he came to not even auditioning for Britain's Got Talent, back in 2007.

He was filling in an application form for the ITV show online and, struck with doubt, eventually flipped a coin to decide whether to enter.

Of course he went on to wow the judges with a performance of Nessun Dorma at his audition in Cardiff, and won the first series of the talent contest.

Watch: ITV Cymru Wales' programme on the Paul Potts story - Time of Your Life

A film depicting the real-life story of opera phenomenon Paul Potts' rise to fame gets its UK premiere tonight in London.

James Corden plays the Britain's Got Talent winner in a journey from Port Talbot to the final of the ITV talent show.

Many scenes were filmed on location in Port Talbot.

Potts was working in a mobile phone shop in Bridgend when he auditioned for Britain's Got Talent.

The film, produced by Britain's Got Talent's judge and music mogul Simon Cowell, stars Julie Walters and Colm Meaney. Former Pobl y Cwm actress Alexandra Roach plays his girlfriend.

One Chance is in cinemas from 25 October.