Hunt for Wilderpeople

According to the attachment theory, both Ricky Baker and Hec would be categorized into the avoidant-attachment style. After he was sent to his new foster family with Hec and Bella, he tried to run away at the very beginning. He did not want to talk to anyone and even though Bella has been trying to make him feel warmth and love, he sneaked out at the midnight and tried to escape. Perhaps it was the abandonment by his mum that led him to this but it is also possible that he did not believe there would be kind people in the world due to his past experience with the child welfare services and the loss of his best friend. Perhaps this is also why he was being described by as a troublesome kid who did "graffiti-ing, littering, smashing stuff, burning stuff, breaking stuff, stealing stuff, throwing rocks...", he wanted to protect himself as he was never loved by anyone. However, it was heartwarming to see that he began to talk to Bella and even starting to form an attachment with her, which was shown when they could sing along for his own birthday although the song was a self-composed one. It was also the beginning of him having a taste of love, that unlock his armed heart, that enabled him to be fearless to try getting closer with Hec after Bella's death.

I would consider Hec was also having the avoidant-attachment style because he hardly form any attachment with anyone too. Even with Bella, he did not have much interaction with her in daily life, he did not show any affection towards anyone. However, we could feel how much he loves Bella especially when he expressed his sadness in tears while holding Bella in his arm when she's dead. His later revelation about his past with Ricky, had also revealed the reason he became what he was.

The process of forming attachment with each other between Ricky and Hec was the highlight of the movie. They were similar to each other, in terms of experience and the way they react to the environment, only one was younger and one was older, which made a huge difference as Ricky still kept a naive side of him where he would want to be loved and cared. His was still not in complete disappointment to the world, which is why he was easily lit up by Bella. However, Hec had much more experience with the world. He was realistic, and he had enough of disappointment with the world that he did not want to give anymore. He only wanted to keep everything to himself and keep himself isolated from the world. Yet, he could not resist this thing called "love", that he got showered by Bella and Ricky, which eventually led him to forming that attachment with Ricky.  

"No Child Left Behind"
It's sarcastic to see how the child welfare services has been using this tagline yet their actions have not been really synchronised with it. Yes, they tried to find Ricky when he went missing but the thing is they made a big fuss out of the missing of Ricky by having helicopter and police car to chase him, just to throw him into juvenile prison again, made all the efforts they put in the chase sound really ridiculous. The tagline was supposed to be advocating for children's welfare, but their actions have already gone wild, losing the original intention.