On the surface, Destin Daniel Cretton’s adaptation of Jeannette Walls’ memoir The Glass Castle, should pack an emotional punch. It’s the story of a painful childhood, the gulfs that form between parents and children, and the difficulty of finding forgiveness. The film also features outstanding performances, especially from Woody Harrelson who continues to show that he’s one of the best actors working today. And yet Cretton’s movie can never seem to find much depth beyond Walls’ suffering. Its heavy reliance on flashbacks drains the film of emotional tension, and Cretton struggles to find much insight on the strained relationship between Jeannette and her parents.