There’s this movie. A married couple’s having a wee bit of a midlife crisis. They meet this twentysomething couple. Hijinks. Absolutely. Do. Not. Ensue. Before you realize it, “While We’re Young” (2015) stops being a comedy (if it ever was one) and gets really weird (but not weird enough to be the good kind of weird). It’s trying to make a point – or 100 points – but it can’t focus enough to explain what the fuck it’s exactly talking about. And gee, it stars Ben Stiller, one of my favorites (cue sarcastic sound effect). Ya know, some hijinks woulda been OK.