ComingSoon.net has posted the box office estimates for the four-day Labor Day weekend and The Dark Knight is still going strong:
After four weeks at #1 before dropping down to fourth place last week, Christopher Nolan’s action-thriller The Dark Knight (Warner Bros.) not only crossed the $500 million mark domestically yesterday, a feat only accomplished once before by James Cameron’s Titanic, but it also moved back up a notch to third place with $11 million over the extended weekend for a total of $504.7 million. Internationally, The Dark Knight added $19.2 million for an overseas gross of $417 million. Combined, it has earned a massive $921.7 million worldwide and has climbed to the 9th spot on the all-time worldwide blockbuster list.
You can read the full box office rundown here.