EXCLUSIVE:  You might find this a hard-to-believe tale, but it really happened. Documentary Finders Keepers, directed by Bryan Carberry and Clay Tweel, centers on a custody battle over a severed leg that Shannon Whisnant found inside a barbecue smoker he bought at an auction. The leg had belonged to John Wood, who lost it in a plane crash. This stranger-than-fiction docu follows Wood’s battle to reclaim the leg, who believes it to be his rightful property.  Competing in the U.S. Documentary Competition, Finders Keepers premieres January 27 at the MARC in Park City. Check out the clip above.