Throughout the festival, film crews captured the acts on stage and later released the footage as "Woodstock," forever immortalizing the show and its performers and reportedly grossing over $50 million. In the photo at right, director Michael Wadleigh is seated in the foreground, bare chested and wearing a headband. A young Martin Scorsese (not pictured), who worked as an editor on the film, writes in the foreword for "Woodstock: Three Days that Rocked the World" that "what the movie did, and continues to do, is to distill the Woodstock experience and, more important, keep it vibrant and alive."