Bill Murray’s got some moves in St. Vincent, a big-hearted movie that had its New York premiere last night, a few days prior to opening the Hamptons International Film Festival this coming weekend. Murray’s shimmying in his seedy Sheepshead Bay kitchen, and singing to Dylan’s “Shelter from the Storm,” are some of the film’s many highlights, but he has nothing on Naomi Watts’ pole dancing with a baby bump. You have never seen Watts like this, a “lady of the night,” her Australian accent turned Russian. Harvey Weinstein called her to ask, do you want to do something different. This funny role of Daka, is, well, just that, revealing her chops as a genuine comedienne. But how could it be otherwise opposite Murray, Chris O’Dowd, and Melissa McCarthy, a dream ensemble sure to garner acting nominations in the coming season. They mixed it up with McCarthy in the straight role, playing the mother of Jaedan Lieberher, one of those wise-beyond-his-years kids, utterly polite considering the grownup shenanigans, and the movie’s real star.