Directed by Jessica Edwards, this Canadian/US documentary explores the life and career of American gospel/soul singer Mavis Staples. Still active in her mid-70s (her two most recent albums in 2010 and 2013 were both produced by Wilco’s Jeff Tweedy), Staples and her family group the Staples Singers have had an undeniable impact on music history.

But Staples also worked as a civil rights activist, and that aspect of her life is also examined by Edwards in her documentary.

MAVIS! screens tonight at 9 p.m. and Saturday and Sunday at 7 p.m. at the RPL Theatre. Here’s the trailer: