The next installment of the Harry Potter movies was suppose to be the last but it has been split into to feature films . Harry Potter and the Deathly Hallows: Part 1 will premeir in 2010 and Part 2 will come out the following year 2011. The reasons for the 2 part movie was puzzling so I searched around and found out from Wiki and other sources that ;

The film is to be split in two, with David Yates, who directed the preceding two films, directing both parts. Part 1 will be released in November 2010, and Part 2 in July 2011. The splitting came from the original declined proposal to split Goblet of Fire back in 2004. Deathly Hallows will be shot back to back,and treated as if it were one film.The idea to split the films had been around since the middle of 2007, but only really came into serious consideration after producer David Heyman was able to talk to writer Steve Kloves when the 2007–2008 Writers Guild of America strike ended and Heyman had Rowling’s approval. As of April 2009, Kloves is working on the script of second part.

“Years ago, we briefly — and seriously — considered doing Goblet of Fire as two films. So this concept is not altogether new. As for Deathly Hallows, I intuited — almost from the first moments I began reading it and certainly once I’d finished — that to realize the story in a single film was going to be a tall order. Others in ‘the group’ felt similarly. So the idea of two films began to get kicked around as early as late summer of 2007. We didn’t take it lightly. But ultimately everyone felt that despite the challenges it would present, it was the most sound creative decision.

I’m sure some will think we’re crazy. My wife looked at me cross-eyed when I first mentioned it. But I’m really excited about it because it should allow us to stretch a bit with the characters and give them the proper send-off. The story is highly emotional and those moments deserve time to breathe. And, personally, I feel we owe it to Jo — in order to preserve the integrity of the work — and the fans — for their loyalty all these years — to give them the best and most complete experience possible.” — Steve Kloves on the decision to split the film.

According to Warner Bros. executive Alan F. Horn it will allow “an extra hour and a half to celebrate what this franchise has been and do justice to all the words and ideas in the amazing story.” Heyman described the workings behind the split: “Deathly Hallows is so rich, the story so dense and there is so much that is resolved that, after discussing it with [Rowling], we came to the conclusion that two parts were needed.”Kloves was not able to start work on the script until the WGA strike ended.

The story will hold true to the book and Part 1 will cover the story lines dealing with arcording to Imbd synopsis

Harry with the help of his friends Ron and Hermione go on the ques that Dumbledore sent them on to find all the lost Horcruxes and destroy them . It also turns out that they are wanted criminials and the dark lord has put a 10,000 galleon price on their heads for anyone who captures them and turns in harry to the Death Eaters. The Dark one gave the orders to the Death eaters not to kill Harry . Taht pleaser is to be for him and him only to do.

Meanwhile on their trip Harry keeps getting glimpses into the mind of Voldemorts and discovers that the dark lord is on a quest to find a wand that Harry has never heard of and its there where the Harry learns about the “Deathy Hallow”.

Part 2 is the end game one and finish off the story as in the book.

(story plot from wikipedia)The book culminates in the Battle of Hogwarts. Harry, Ron, and Hermione, in conjunction with students and members of the wizarding world opposed to the rise of Voldemort, defend Hogwarts from Voldemort, his Death Eaters, and various magical creatures. Several major characters are killed in the first wave of the battle. Harry discovers that Voldemort inadvertently made Harry a Horcrux when he attacked him as a baby, and that he would have to die in order to destroy Voldemort. Harry surrenders himself to Voldemort, who attacks Harry with the Killing Curse, sending Harry to a sort of Limbo between life and death. There, Harry meets Dumbledore who explains that because Voldemort used Harry’s blood to regain his full strength, Harry is protected from any harm that Voldemort could commit, meaning that the Horcrux inside of Harry is destroyed but that he can return to his body despite being hit by the Killing Curse. Harry then returns to his body, the battle resumes, and after the last remaining Horcrux destroyed, Harry is able to defeat Voldemort.