“American Hustle” (2013) was rolling up on the two-hour mark. I was getting fidgety. Forty-eight-year-old derrieres can only sit for so long. There seemed to be no payoff. The characters were interesting, but the story was bleak. Con-man films work best when there’s someone to root for. The only person I liked was Jeremy Renner’s corrupt New Jersey mayor, and his role was fourth-billed. (Truthfully, I was also rooting for the wardrobe director, who reminded me of my horny 1979 teens with Amy Adams’ spectacularly low-cut blouses.) But then, wow. Not the best movie of 2013, but worth the wait.