The question really depends on what you mean. Worldwide Box Office , Domestic Box Office , or Adjusted for Inflation.
The four highest grossing domestic movies at the box office are:
1. Titanic
2. The Dark Knight
3. Star Wars
4.Avatar
Hope this helps. Information taken from Box Office Spy
To date, 'Avatar' has taken in excess of $2.7 billion worldwide, however when you adjust for inflation the ticket sales for the 1939 film 'Gone with the Wind' would be worth over $6 billion today.
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Its US box office gross was $11,549,960.
Juno gross $131 million in the US and another $39 million in the rest of the world (to date).
The Longest Day was the top earning box office movie released in 1962 grossing a non inflation adjusted $39,100,000.
Raiders of the Lost Ark was the top earning box office movie released in 1981 earning a non-inflation adjusted $230,329,080.
Paranormal Ativity (2009) led the horror genre in terms of woldwide box office grosses.
Domestic Total Gross:$183,135,014Worldwide Total Gross:$527,071,022
By box office gross income it was Armageddon.
The average animated film gross varies between $64 million and $400 million. This is the total lifetime gross for movies at all theaters and includes international showings.
Its US box office gross was $11,549,960.
According to Box Office Mojo that would be Rush Hour 2 with a life time gross of $226,164,286.
Very gross
Title Year Budget US Gross % of Budget Net Loss Alexander2004 $155,000,000 $34,297,191 22.1% $120,702,809
Avatar had a worldwide gross profit of $2,787,965,087.
The Alvin and the Chipmunks movie was produced by the studio Fox and the total box office gross was $217,326,974. It took is $44,307,417 in it's opening weekend.
Johnny Depp's top-grossing movie was The Pirates of the Caribbean: Dead Man's Chest, which currently has a lifetime box office gross of $423,315,812 [US].
The total box office gross for the movie Taken (2008) was $145 million in the U.S. and $227 million worldwide.
The film closed on December 20, 2007 with a gross of $183,135,014 in the United States and Canada and a worldwide gross of $527,068,706.