This is the Truth about Military Life!
Ok, I haven't gotten to see the movie, but did read the book. What the STORY is about, and it is true, is what it is to be raised by a "Military" Parent - and it is no picnic. While most men do not raise a hand to their wives. My father really did do the White Glove (running a clean white glove over all surfaces)on my mother to see if she had cleaned the house properly. And most of the kids do get beaten - a lot. Few people can understand what it is to grow up in Boot Camp.
The information in the book was autobiographical enough that it effectively tore the whole family appart.
The story is NOT about Bull, but what it is to have such a father.