So this is what Tyler Perry is like when he’s not dressed like a grandma? Perry plays a Detroit homicide detective who’s a genius AND a badass in “Alex Cross” (2012). He’s like one of those quirky characters that populate TV these days (“House,” “The Mentalist,” “Elementary”) that has the ability to find obscure clues that nobody else notices. Plus, he’s like six-foot-a-hundred and carries a big-ass shotgun. So there’s that. But the whole movie seemed kind of cookie-cutter. Which makes sense, since it’s based on a novel by the prolific James Patterson. So at least it’s a tasty cookie.