Madeline (Helena Howard) has a hospital bracelet on her wrist and a rehearsal to go to. One of the questions fueling Madeline’s Madeline, Josephine Decker’s third feature as a solo director, is how two of the biggest elements of Madeline’s life — some unspecified form of mental instability and her promise as a young actress — interact, or if they even can safely. Howard’s breakout performance as the troubled thespian is part of an unusual triangle. At one point is her mother Regina (the writer, actress and performance artist Miranda July), whose protective custody of her unstable daughter is unreadable: justifiable […]