the forthcoming Universal film adaptation, directed by Stephen Chbosky (“The Perks of Being a Wallflower,” “Wonder”).Ben Platt reprises his role as the titular character, a high-school loner who has trouble making friends. The movie also stars Amy Adams, Oscar winner Julianne Moore, Kaitlyn Dever and Amandla Stenberg.The tear-jerking trailer shows Platt’s character writing letters to himself as a form of therapy recommended by his psychiatrist.