One of my favorite scenes from “Boyhood.” The father played by Ethan Hawke gives his son a mix CD and tries to explain why it’s so great. His son, played by Ellar Coltrane, graciously accepts the CD, but has a look on his face that he’s been down this road many times before with his Dad. The Hawke and Coltrane characters are good people, but let’s just say, I’m trying really hard NOT to be that kind of dad re: pop culture and my kids.