Josh Brolin with his father James and stepmom Barbra Streisand in 2010. Kevin Winter/Getty Images Josh Brolin credits stepmom Barbra Streisand with helping him stay sober. The Dune actor, 56, spoke about his relationship with Streisand, 82, during his Wednesday, November 18 appearance on “The Howard Stern Show.” Host Howard Stern congratulated Brolin on his…
