As "X"-pected, 20th Century Fox's "X-Men" opened to "X"-ceptionally strong business. "X-Men" topped the chart with an "X"-citing ESTIMATED $57.5 million at 3,025 theaters ($19,008 per theater). Its per-theater average was the highest for any film playing in wide or limited release this weekend. Driven by "X-Men" and helped by surprisingly strong holds for the four other Top Five films -- Dimension Films' "Scary Movie," Warner Bros.' "The Perfect Storm," Columbia's "The Patriot" and Bue