Spring Breakers‘ audience will be divided into two groups of people: those who get the joke, and those who don’t. Of course, Harmony Korine’s new film operates on such blatant, overt levels of exploitative debauchery that it’s difficult to imagine how anyone could miss the point (subtlety isn’t his forte). If some still see 1999’s Fight Club as an endorsement of its ideas and behaviors rather than a rejection, though, then anything is possible. But Spring Breakers practically invites mainstream viewers to fumble with its meaning while Korine sits on the other side of the camera smirking; he’s almost daring his patrons to take up his film’s central mantra and leave…