“There’s a fine line between being bold and being a dumbass. And I think Brad did some time on both sides of the line.” Such are the words filmmaker and climber Cedar Wright uses to describe the subject of his new film. Meet Brad Gobright, 27 years old, busboy at a fine dining establishment, dirtbag, college dropout. Gobright’s diet consists of sprinkled donuts, scraps from work, glazed croissants, apple pie, and any and all junk food. And one other thing: Gobright is one of the best and boldest free solo climbers in the sport — who nobody has ever heard of. Safety Third shines the spotlight on Gobright, probably for a shorter moment than he deserves. But it doesn’t matter. His mind is elsewhere, focused on his next free solo.