Batman aka Dark knight can it catch Titanic?

this latest Batman Movie is running things at the box office which is the under statement of the summer and year for that matter. now titanic ran things a decade ago grossing worldwide a billion dollars. 600 plus million here. but this Batman dark knight film staring the late Heath Ledger is is huge. can it catch titanic? I don't quite think so for a few factors, ticket prices are higher, internet buzz and downloading is bound to eat into the Profits of Dark Knight and most films don't last for three months as titanic did. but having said all of that wouldn't it be something if it did? I mean on the real aside from a few films, the box office on a whole is pretty dead. most films nowadays are good or seen as great if they make 100 to 150 million. so when you have a film that is seeing almost 400 million dollars in only 20 days then your jaw has to drop to the floor. i still haven't seen the film yet, but i plan on catching it on dvd at home unless i get motivated to check it out directly. theaters have been packed non stop and that is still amazing especially now but then again there is always a film or something that truly captures the imagination which is what it is all about.