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.
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Pollen levels will remain moderate tomorrow and Tuesday, but will be lower on Wednesday.
It will be a dry evening for most. A band of rain and thicker cloud will spread from the north overnight, clearing in the early hours.
A Korean state-owned power company could be investing in the new £10billion Wylfa Newydd nuclear power station, Sunday Times has reported.