If all you knew of Roger E. Mosley was as Tom Selleck's chopper pilot sidekick, T. C., on '80s TV's "Magnum, P. I.," then it may come as a surprise how good he is playing the title role in this fictionalized story of the legendary bluesman Huddie Ledbetter, a.k.a. Leadbelly, directed by Gordon Parks. Covering a span of more than 20 years, from his 20s to 40s, the master songwriter and guitarist hones his craft while serving prison sentences slaving away on Southern chain gangs. He's even pardoned by an outgoing Governor, largely because of his popular musicianship, but as he tries to make his way back to his ancestral home, he is still not able to be completely free of the painful chains that have bound him. Some fine acting by several of the leads, and Mosley adds much of his own vocals (with the only slightly less legendary Brownie McGhee, who had played with Leadbelly in the 1940s, adding guitar), but it's equally worth noting that most Southern whites are depicted as racist, one-dimensional morons (not that that's unfair, necessarily; it's not *their* story, and therefore they are only notable for their incessant and relentless cruelty). I couldn't decide between 7 or 8 stars out of 10, and the lower number reflects the failings of the studio more than the film. (Hollywood still could barely conceive of a serious dramatic movie cast populated predominantly with people of color, but equally appealing to mostly a Caucasian moviegoing audience, despite it having witnessed the success of "Sounder" just 2-3 years earlier.) Oh well; at least, in a post Marvel's "Black Panther" world, that thinking no longer predominates.