New releases The Back-Up Plan (#2, $12.24 mil), The Losers (#4, $9.6 mil) and Oceans (#8, $6 mil) generated little interest, while Dragon's photo finish rival from last weekend, Kick-Ass (#5, $9.5 mil) conked out.
Whitney Houston's comeback world tour went from bad to worse in London's O2 arena for 20,000 fans. Houston, 46, admitted to the crowd that she couldn't hit the high notes and even abandoned The Greatest Love Of All after only a couple of verses.
Justin Bieber was set to make his Australian debut with a free outdoor concert on a morning TV show, but the performance was canceled after thousands of unruly fans created a security nightmare.