Paul McCartney's longtime advocacy for vegetarianism is reflected in his latest project. He narrates the short documentary titled One Day a Week, which blames "animal agriculture" for contributing to greenhouse gases and climate change.
His solution: the Meat Free Monday campaign, where he urges fans to stop eating meat one day a week.
The film also includes appearances by Emma Stone, Woody Harrelson and McCartney's daughters Mary and Stella. The soundtrack features an unreleased McCartney song, "Botswana," along with selections from his 1997 classical album, Standing Stone.