Maybe there’s a debate going on about whether we are, in fact, in the midst of a “documentary renaissance,” but the answer seemed self-evident at the 20th annual Hot Docs, that sprawling all-nonfiction festival that serves as a deliberately inclusive snapshot of current documentary culture. Among the many, many (perhaps too many?) titles, viewers could find social issue examinations, subculture portraits, character studies, or whatever style of documentary that excited them. It was all there. Quantity doesn’t equal a renaissance, of course, but for those looking for bold, formally inventive cinema, Hot Docs had plenty of that, too.