Blue Ruin is a 2013 American revenge thriller film written and directed by Jeremy Saulnier and starring Macon Blair. Saulnier funded production on the film through a successful Kickstarter campaign, which MTV called "the perfect example of what crowdfunding can accomplish."

Macon Blair is an American film director, producer, screenwriter, comic book writer and actor known for his roles in the films Blue Ruin (2013) and Green Room (2015), as well as his directorial debut I Don't Feel at Home in This World Anymore (2017).