SUNDAY AM, Refresh for updates and chart: Focus Features/Amblin’s PG-13 horror movie Come Play came in much better than expected, seeing a boost on Halloween night (as opposed to expected drop) with $1.3M, +18% over Friday+preview’s $1.1M. This puts the pic’s opening weekend at $3.15M in No. 1 spot. One industry insider tells me, “Look at what