Manic Street Preachers' James Dean Bradfield's soundtrack
Manic Street Preachers' James Dean Bradfield has written his first soundtrack for a film.
The Chamber is a thriller set in a submarine off the coast of North Korea.
It was written and directed by Ben Parker and shot entirely in south Wales, with the underwater scenes filmed in a special tank built in Pencoed, Bridgend.
A charity Welsh premiere is taking place in Cardiff on Thursday night.
Bradfield and Parker talk to BBC Wales arts and media correspondent Huw Thomas about the project.