Avatar is now the top grossing movie of all-time in the U.S. The Oscar nominated movie moved past Titanic on Wednesday. Titanic made $600.788 million and Avatar has now made over $601 million. You can see the U.S. all-time top grossing film list here. Avatar's box office sales have had a boost from IMAX theatres, which can cost around $10 for adults. But there is no denying Avatar is a monster hit. Avatar has made over $2 billion worldwide and it has been the top film in U.S. theatres for seven straight weeks.