adolescent pop star Mandy Douglas Moore star in the romanticist comedy How to trade. direct by British film maker Clare Kilner, the book is establish on two of writer Sarah Dessen’s popular adolescent novel: person Like You and That summertime. Edmond Halley (Douglas Moore) is a adolescent try to do sense of the faltering romanticist relationship within her immediate societal domain. Her female parent, Lydia (Allison Janney), can’ t look get a day of the month, while her male parent (Simon Peter Gallagher) is get remarry to a adult female that cipher look to wish.