Titled Harry Potter and the Deathly Hallows: Part 1 and Harry Potter and the Deathly Hallows: Part 2, the movies are set to be released in November 2010 and May 2011.
They will be shot back-to-back by David Yates, who is directing the adaptation of the sixth novel, Harry Potter and the Half-Blood Prince, due in theatres November 21. Steve Kloves, who has written all but one of the Potter movies, also is returning to write the two-parter.
Hallows, which sold more than 11 million copies in its first 24 hours of release, is J K Rowling's biggest book, weighing in at 784 pages. Adapting the novel would have resulted in truncating large swaths of it or making an extra-long feature in order to fit everything in.
The decision makes financial sense for Warners because the movies are surefire hits, and the Potter franchise has brought in billions of dollars for the studio.
The five Harry Potter films released to date make it among the most lucrative franchises, bringing in $4.8 billion at the box office worldwide.
It has been confirmed that the cast of the sixth movie, led by Daniel Radcliffe, will return for the final adaptation.
