Three decades later, it’s strange to hear Kevin Costner talk about the insecurities he faced while making his directorial debut Dances With Wolves, which was released exactly 30 years ago, on Nov. 19, 1990. Not only was the Untouchables and Field of Dreams actor already a bona fide movie star at the time, but he would also ultimately win a pair of Oscars for the Western drama, Best Picture and Best Director. He had to know he was onto something special, right? But Costner, who also starred as...