(UPI) — The highest-grossing film of all time is once again Avatar, a 2009 sci-fi adventure directed by James Cameron and produced by Jon Landau. Avatar‘s global box office is estimated at $2.8 billion while Marvel’s Avengers: Endgame — helmed by the Russo brothers with a 2019 release — has racked up $2.797 billion in receipts. Avatar unseated Endgame because it was re-released in China […]