For about a half hour, Minding the Gap lulls you into a false sense of security. The opening passages of the documentary introduce us to two Rockfort skaters, Zack and Keire; Zack is a young father struggling to support his family, while Keire is a timid teenager who becomes increasingly desperate to leave the city. The film intercuts stories of their troubled youths with incredible footage of them skating around the streets of Rockfort. While Keire and Zack still reel from the abuse their fathers inflicted upon them as children, they rhapsodize about the escapist nature of skateboarding. More importantly,…