After one week of positive box office performance with the debuts of Madagascar 3 and Prometheus, things have gone back to bleak. That’s because each of this weekend’s new titles stumbled badly on their first day in theatres. Neither Rock of Ages, the PG-13 musical starring Tom Cruise, nor That’s My Boy, the R-rated comedy starring Adam Sandler, managed to shine: Rock of Ages earned an estimated $5.3 million from 3,470 locations while That’s My Boy took in just $4.6 million from 3,030. To illustrate how bad those numbers are for a summer movie, The Three Stooges earned more ($5.6 million) on its first Friday… in April. Granted, mid-June is not exactly a box office hot spot but even Mr. Popper’s Penguins managed a $6.3 million debut at this time last year. So, instead of the $25 to $30 million that these titles were aiming for, they will now be lucky to see their weekend totals rise above the mid-teens. Of course, this is great news for Madagascar 3, which will continue to hold the top spot on the weekend chart for a second week in a row.  Full details and analysis tomorrow.