Warner Bros. announced on 12th September 2013 that J.K. Rowling would be making her screenwriting debut with “Fantastic Beasts and Where to Find Them”, the first in a new film series which is part of their expanded creative partnership with J.K. Rowling. The films will be inspired by Harry Potter’s Hogwarts textbook of the same name, and will feature the book’s fictitious author, Newt Scamander.

“We are incredibly honored that Jo has chosen to partner with Warner Bros. on this exciting new exploration of the world of wizardry which has been tremendously successful across all of our businesses,” said Tsujihara. “She is an extraordinary writer, who ignited a reading revolution around the world, which then became an unprecedented film phenomenon. We know that audiences will be as excited as we are to see what her brilliant and boundless imagination conjures up for us.”

In addition to the film series, “Fantastic Beasts” will also be developed across the Studio’s video game, consumer products and digital initiatives businesses, including enhanced links with Pottermore.com, Rowling’s digital online experience built around the Harry Potter stories.

The Studio’s expanded partnership with Rowling also covers the continued expansion of its Harry Potter activities, including the wonderful Wizarding World of Harry Potter theme parks in conjunction with partner Universal Parks and Resorts (currently in Orlando, FL; opening in Hollywood, CA and Osaka, Japan), digital initiatives (including Pottermore), video games, consumer products and visitor attractions.

In addition, Warner Bros. will serve as the worldwide TV distributor (excluding the U.K.) of J.K. Rowling’s upcoming television adaptation for the BBC of “The Casual Vacancy,” her best-selling first novel aimed at adult audiences. This miniseries begins production in 2014.

UPDATE FROM J.K. ROWLING'S FACEBOOK PAGE:
“It all started when Warner Bros. came to me with the suggestion of turning “Fantastic Beasts and Where to Find Them” into a film. I thought it was a fun idea, but the idea of seeing Newt Scamander, the supposed author of “Fantastic Beasts”, realized by another writer was difficult. Having lived for so long in my fictional universe, I feel very protective of it and I already knew a lot about Newt. As hard-core Harry Potter fans will know, I liked him so much that I even married his grandson, Rolf, to one of my favourite characters from the Harry Potter series, Luna Lovegood.

As I considered Warners’ proposal, an idea took shape that I couldn’t dislodge. That is how I ended up pitching my own idea for a film to Warner Bros.

Although it will be set in the worldwide community of witches and wizards where I was so happy for seventeen years, “Fantastic Beasts and Where to Find Them” is neither a prequel nor a sequel to the Harry Potter series, but an extension of the wizarding world. The laws and customs of the hidden magical society will be familiar to anyone who has read the Harry Potter books or seen the films, but Newt’s story will start in New York, seventy years before Harry’s gets underway.

I particularly want to thank Kevin Tsujihara of Warner Bros. for his support in this project, which would not have happened without him. I always said that I would only revisit the wizarding world if I had an idea that I was really excited about and this is it.”

[SOURCE: MUGGLENET+JKROWLING.]