LOS ANGELES, Feb 23: The moguls of Hollywood might engage in more backslapping than usual at tomorrow’s Oscars, and it won’t necessarily be over those golden statuettes. The tuxedoed movie studio chiefs can boast about an unusually large number of blockbuster films in 2012 that lifted ticket sales for the first time in three years and stemmed a seven-year free fall in sales of DVDs and other home entertainment products. (agencies)