The Way Way Back is a remarkable, satisfying coming-of-age drama film about a 'wallflower', Duncan gradually finds his way in life, overcome his lack of confidence and learn some important life lessons by a cool water park manager and a nice girl who approaches and shows him the meaning of life and reveal his inner potential as a person.
Despite its familiar themes (a nice woman falls in love with a nasty jerk for some weird reason, a nice girl appears to provide comfort, etc), the film manage to create an impact by showing characters you can somehow relate to and let you empathize with them. There are many moments or scenes in the film that you might have experienced yourself in life.
The film done a great job in conveying the underlying themes throughout the entire film - There's no sets of definitive 'patterns' and 'rules' in life that you have to follow...life is a journey, you got to find your own way, a path that you never regret. Sometimes, life's seemingly insignificant moments are the ones that truly makes you happy and contented. But keep in mind that in real life, there won't be a nice attractive girl come looking to provide you solace (If there is, you're damn lucky).
Overall, this film is very familiar with another brilliant coming-of-age drama, The Perks of being a Wallflower but still wonderful in its own way. It's a shame that not many people interested to watch it or even know that the film exists.