Kevin Costner is mourning his “Dances With Wolves” co-star Graham Greene. Costner, 70, posted an emotional Instagram tribute Tuesday to Greene, who died Monday at age 73, with a clip of their ...

Kevin Costner remembered his Dances With Wolves co-star Graham Greene following the actor's death on Monday. Costner shared a clip of the 1990 film, which he also directed, on Instagram along with a ...