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1. Harry Potter

Total worldwide gross: $5.57 billion
Number of films: 7
Highest grossing film: Harry Potter and the Sorcerer's Stone ($975 million)

The Harry Potter series is based on the seven highly successful books by author J.K. Rowling, and with the most series' most recent film, it has become the highest grossing film franchise of all time. "Harry Potter and the Deathly Hallows" is estimated to have raked in over $125 million in its first weekend at the box office, leapfrogging Star Wars virtually overnight.

The first Harry Potter film debuted in 2001 with Harry Potter and the Sorcerer's Stone, and in the decade since, the series has gone from strength to strength, smashing box office records in the process.

The current installment, Harry Potter and the Deathly Hallows, is being released as two separate films -- part one in November 2010 and part two in the summer of 2011. The second part will mark the eighth and final film overall in the franchise.

Photo: AP