Rocker Ryan Adams has been enlisted to compose the score for Al Pacino's upcoming drama inspired by John Lennon.

The singer/songwriter was recruited by veteran film composer Theodore Shapiro to co-write the music to Danny Collins, according to website Film Music Reporter.

Adams previously collaborated with Shapiro on the track Stay Alive, which was performed by Jose Gonzalez, from The Secret Life of Walter Mitty soundtrack.

Danny Collins follows an ageing rock star, played by Pacino, who attempts to change his life and make amends with enemies after finding a personal letter written by Lennon.

The film also stars Annette Bening, Jennifer Garner, Christopher Plummer, and Bobby Cannavale, and is written and directed by Tangled helmer Dan Fogelman, who worked with Adams' wife Mandy Moore in the Disney film.

Danny Collins is slated to hit cinemas next year (15).