My dad (rest his soul) loved this movie. For him it all came down to one quote which, for years, he said was probably the most honest thing he's ever heard about life in a movie:

"People are always talking ya about truth. Everybody always knows what the truth is, like it was toilet paper or somethin', and they got a supply in the closet. But what you learn, as you get older, is there ain't no truth. All there is is bullsh, pardon my vulgarity here. Layers of it. One layer of bullsh on top of another. And what you do in life like when you get older is, you pick the layer of bullsh** that... ler o resto.