A new seven-minute documentary paying tribute to St. Louis and its residents has an unusual sponsor: Church's Chicken.The documentary, which debuts locally below and has a nationwide rollout on Monday, is part of a short series of similar films made by the fried chicken spot. The first two featured Compton, California, and San Antonio.
The seven-minute film definitely makes a plug for Church's, but it also takes pains to show real people and dig far deeper than the touristy spots.…