When Michael Douglas, Morgan Freeman, Kevin Kline, and Robert De Niro signed up for the geriatric Hangover caper Last Vegas, they firmly cemented themselves in a somewhat new genre: the coming of old-age story. These four men, all still in the primes of their lives and well-respected actors getting wonderful roles, felt the need to star in a film that constantly brought up two points: these guys are old guys, and these old guys still know how to roll with the youngins’. Why? These four could bust up Vegas any day, without having to get pushed in pools, or fistfighting bros, or seeing Freeman dance-shuffle to “September.” It’s a cry saying, “we’re still here, look how much fun we can have,” but nobody ever entertained the notion of them ever leaving. The wacky old men concept hasn’t just popped out of nowhere. In fact, some of the Last Vegas men are repeat offenders. The upcoming Grudge Match, starring Sylvester Stallone and Robert De Niro, is about two aging boxers who, quite literally, try to prove that they’ve still got it. It looks ridiculous and features a lot of jokes about how out of shape and old they’ve both gotten since their glory days. Why do the former Jake LaMotta and Rocky Balboa want to do this to themselves?