Actor Jeff Grace makes his directorial feature debut with Folk Hero & Funny Guy, a Tribeca Film Festival offering starring Girls‘ Alex Karpovsky, Wyatt Russell (Everybody Wants Some!!) and Men at Work actress Meredith Hagner. Karpovsky plays Paul, a middling standup comedian recently recently dumped by his girlfriend. Childhood pal and successful folk rock musician Jason (Russell, real-life son of Kurt Russell and Goldie Hawn) scoops up Paul as a ridealong on the singer’s…