James Cameron 's " Avatar , " for example , has sold more than $ 1 billion worth of tickets in less than a month -- and not just in the U.S. The environmentalist techno-epic is already Russia 's highest-grossing film ever with $ 55.5 million in receipts ; it 's done $ 85.6 million worth of business in France , $ 56.1 million in Germany and nearly that much in Britain .