This week on The Treatment, Elvis welcomes back Academy Award winning screenwriter Dustin Lance Black. Black’s newest project is as executive producer and showrunner of the FX limited series “Under the Banner of Heaven,” streaming on Hulu. The series is adapted from Jon Krakauer’s book of the same name. Black won the Oscar for Best Original Screenplay for “Milk” in 2009. Black, a former member of the Mormon church, tells The Treatment about his own complicated relationship to the church and why he was drawn to the story. He says while he originally tried to adapt the book into a screenplay, the story was too complex to be condensed into two hours. And he says the series is a warning for people who don’t question documents written hundreds or even thousands of years ago.