A coming of age comedy directed by Nat Fixon and Jim Rash, “The Way, Way Back,” stars Liam James as 14-year old Duncan. On summer vacation with his mother Pam (Toni Collette) and her obnoxious boyfriend Trent (Steve Carrell). An introverted fellow, Duncan finds his way to a water park, where he befriends Owen (Sam Rockwell), …