Shannon Whisnant has a nose for a bargain. But when he bought a used grill at a North Carolina auction, the severed human leg he found inside was not part of the deal. The leg belonged to John Wood, and his connection to it was as emotional as it was personal. Their battle over possession of the leg is profiled in a hysterical and insightful documentary film called Finders Keepers. Directors Bryan Carberry and Clay Tweel join us Friday as we warp up our coverage of the Sundance Film Festival.