In all likelihood, "The Dark Knight" could pass "Titanic" as the highest-grossing film in U.S. history, said Paul Dergarabedian, president of Media By Numbers. James Cameron's 1997 disaster film made $600,788,188 domestically, a record no other movie has come close to touching.
"Titanic" which shot Leonardo DiCaprio to superstardom, has sat in a lock box for over a decade. "It's a tall order but if any film has a chance to surpass that number, it's got to be `Dark Knight,'" Dergarabedian said.










