Highest-grossing film of all time crossword clue

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I must admit that this clue is not so easy. It took us some time to find the right answer to Highest-grossing film of all time. You already know the answers has 6 letters. If you still cannot find it, here it comes.

Clue: Highest-grossing film of all time
Answer: AVATAR
Now you know the answer to Highest-grossing film of all time. It’s time to go back to find the answers to others clues on Wall Street Journal July 7, 2018

Wrong answer?
Well some clues might have different answers. For example, the clue “Mortgage alternative” can have 2 answers: RENT, LEASE found on the these crosswords; Washington Post (Jan 25, 2017) and USA Today (July 18, 2012).