Forthright Records has been in the business of music for over a decade. But they’re making their first official foray into the world of film with a new, feature-length documentary. The subject matter? A Guinness World Record attempt for the ‘longest marathon playing mandolin.’ Filming for the documentary has been underway in real time, following the journey of Stephen Oliver, mandolinist for the alt-rock band Brother Oliver, as he strives to accomplish the impressive (and slightly comical) feat of playing mandolin for over 27 hours straight. The world record attempt is the main storyline, but there’s a lot more in store with the film—including the planning, preparation and training, the aftermath, and a close look behind the scenes of a musical group that’s found success not only with thei...