Continuity mistake: Mason is taking the pictures of his girlfriend off a display and placing them in his file. In the shot where a teacher comes and says "Mason, silver-medal winner", he is shown taking off one picture from the display and lowers it. The shot changes and the picture is suddenly back on the display, which he then takes off a second time.
Mason: So what's the point?
Dad: Of what?
Mason: I don't know, any of this. Everything.
Dad: Everything? What's the point? I mean, I sure as shit don't know. Neither does anybody else, okay? We're all just winging it, you know? The good news is you're feeling stuff. And you've got to hold on to that.