40 years ago today (5/13/81), filmmaker James Szalapski released his Outlaw Country documentary Heartworn Highways. The film follows numerous musicians, including David Allan Coe, Charlie Daniels, Steve Earle, Guy Clark, and Townes Van Zandt in Texas and Tennessee in the last weeks of 1975 and the first weeks of 1976. Check out Townes Van Zandt performing “Waitin’ Around To Die” from the film…