The term Gold Star Family refers to the immediate family of a U.S. service member who died in the line of duty. It’s a term Oscar-nominated actor Virginia Madsen was all too familiar with even before she signed on to the film “ Sheepdog ,” which hits theaters today. Written, directed, produced and starring Steven Grayhm, “Sheepdog” tells the story of Calvin Cole, an Army veteran battling with PTSD. He is helped on the road to recovery by his unlikely friendship with a recent parolee and Vietnam