Hi @jayna,
Thanks for reading and commenting :)
I think you would love this movie. You love good writing, and good story telling. This one has it. As you say, the heart of the piece is the relationship between the father and the son. That's what makes the writing great.
Amazing because the creator of this movie is not a writer by profession (I believe) but he did collaborate with another writer.
Hope you find the time to watch the film.