Forget school-top farms for privileged Manhattan children. You want something truly radical? How about taking over abandoned lots in Detroit so poor single mothers can make a living growing organic produce. That is in part the focus of Grown in Detroit, a new documentary about how the Motor City, on both the large and small scale, is trying to become the manure city. The film is currently screening at a few locations in town as part of the Detroit Windsor International Film Festival. For those of us not in the shrinking city, though, there’s an ingenious option to stream the doc on its website, albeit on a pay-what-you-will basis, which is almost as clever as the idea to turn Detroit into one giant, happy farm.