An audience member's cell phone went off at the premiere performance of James Sherman's comedy, during a scene set in 1970. Playing a conventional middle-class husband, Joe Dempsey looked up from his newspaper and cocked his head as if he'd felt someone walk on his grave. He had the chops to turn the disruption of a ringing phone into something playful, even uncanny--an intimation of the future. But the rest of Dennis Zacek's production played out the way Sherman wrote it. Half and Half is like a week's worth of panels from a family comic strip: however much it teases the status quo, you know nothing important's going to happen. What a waste of Dempsey and the marvelous Laura T. Fisher. Through 7/9: Tue-Fri 8 PM, Sat 5 and 8:30 PM, Sun 3 PM, Victory Gardens Theater, first-floor main stage, 2257 N. Lincoln, 773-871-3000, $35-$40.