Harry Potter on Facebook with Emma Watson

To celebrate the 100-day countdown to the opening of the “Harry Potter and the Deathly Hallows Part 1,” Emma Watson who plays Hermione Granger has announced that 100 tickets for the World Premiere will be given away via a new app on the Harry Potter UK Page on Facebook.

It’s at: http://www.facebook.com/HarryPotterUK

The new app, Join The Final Battle, will give fans in the U.K. and Ireland the chance to win Harry Potter prizes such as premiere tickets and film-related merchandise.

This is the first social media application for “Harry Potter and the Deathly Hallows” that will engage with fans of the blockbuster franchise over the next 18 months, according to Warner Bros. Pictures UK.

“Harry Potter and the Deathly Hallows,” the seventh and final adventure in the Harry Potter film series, is a motion picture event to be told in two full-length parts.

Part 1 begins as Harry, Ron and Hermione set out on their perilous mission to track down and destroy the secret to Voldemort’s immortality and destruction – the Horcruxes.

On their own, without the guidance of their professors or the protection of Professor Dumbledore, the three friends must now rely on one another more than ever. But there are Dark Forces in their midst that threaten to tear them apart.

Meanwhile, the wizarding world has become a dangerous place for all enemies of the Dark Lord. The long-feared war has begun and Voldemort’s Death Eaters seize control of the Ministry of Magic and even Hogwarts, terrorizing and arresting anyone who might oppose them.

But the one prize they still seek is the one most valuable to Voldemort: Harry Potter. The Chosen One has become the hunted one as the Death Eaters search for Harry with orders to bring him to Voldemort…alive.

Harry’s only hope is to find the Horcruxes before Voldemort finds him. But, as he searches for clues, he uncovers an old and almost forgotten tale – the legend of the Deathly Hallows. And if the legend turns out to be true, it could give Voldemort the ultimate power he seeks.

Little does Harry know that his future has already been decided by his past when, on that fateful day, he became “the Boy Who Lived.” No longer just a boy, Harry Potter is drawing ever closer to the task for which he has been preparing since the day he first stepped into Hogwarts: the ultimate battle with Voldemort.

“Harry Potter and the Deathly Hallows” is directed by David Yates, who also helmed the blockbusters “Harry Potter and the Order of the Phoenix” and “Harry Potter and the Half-Blood Prince.”

David Heyman, the producer of all of the Harry Potter films, produced the film, together with David Barron. Screenwriter Steve Kloves adapted the screenplay, based on the book by J.K. Rowling. Lionel Wigram is the executive producer.

Heading the cast, Daniel Radcliffe, Rupert Grint and Emma Watson reprise their roles as Harry Potter, Ron Weasley and Hermione Granger.

Warner Bros. Pictures presents a Heyday Films production, “Harry Potter and the Deathly Hallows,” which marks the latest installment in the film franchise.

“Harry Potter and the Deathly Hallows – Part 1” will be released worldwide starting November 19, 2010, and “Part 2” starting July 15, 2011.