Growing up in Rockford, Illinois--a city outside Chicago that’s seen better days--Bing Liu was obsessed with making skateboarding videos. Over the course of more than a decade, one of those mini-movies morphed into a feature-length documentary. ‘Minding the Gap’ uses 12 years worth of verite footage to tell the story of 3 young men--Zack, Keier, and Liu himself, each coming of age in the shadow of abuse.