On May 23rd, 2004, the stars were on hand for the US Premiere of the film Harry Potter and the Prisoner of Azkaban. It was a star-studded event that took place outside Radio City Music Hall in New York City. Fans lined up and down the streets, with rows and rows of anxiously awaiting Potter-fans all queueing up to see their favorite actors and actresses.

Appearing at the event was: Daniel Radcliffe, Emma Watson, Rupert Grint, Robbie Coltrane, Alan Rickman, Tom Felton, Matt Lewis, Devon Murray, Bonnie Wright, James Phelps (Oliver did not attend the event due to an exam), Jamie Waylett, Alfonso Cuaron, Chris Columbus, Mark Radcliffe, and David Heyman.

Were you part of the fandom when this event took place? Were you at this Premiere or any other Potter Premiere in the world? Let us know in the comments below.

We reported yesterday that Bloomsbury was "counting on a new Rowling three-book set" in order to help boost their sales profits and volumes. We asked you to let us know what you thought this might lead to, and you provided some great responses.

However, it is now known that Bloomsbury will be releasing the supplemental works, Fantastic Beasts and Where to Find Them, Quidditch Through the Ages, and The Tales of Beedle the Bard as one complete box-set.

It will be the first time that these will be available in a hardcover format in the UK.

This set will be released in the fall of this year. Are you excited to see this collection come together in hardcover? Let us know in the comments below.

MISTI-Con 2013 is proud to announce a new partnership with MuggleNet to create programming at this immersive Harry Potter fan experience taking place in May 2013. MISTI-Con's main focus centers on the talent, art and achievements of the members of the fandom itself, highlighting the fantastic participatory nature of the fan community.

In this exclusive partnership, MuggleNet will also provide selected programming, including a live podcast with MuggleNet's Alohomora! for the conference. Unlike most other fan conventions, The Margate will provide MISTI-Con with exclusive use of their hotel. All the rooms, conference halls and common areas will be for MISTI-Con's use and more importantly, all hotel guests will be MISTI-Con attendees. This means extensive decoration of the grounds, hotel suites, and even pool area, to highlight further the complete experience of this conference environment.

To help get the project off the ground, Potter fans can support MISTI-Con through their Kickstarter page, with some fantastic rewards including early registration packages. Other rewards include t-shirts, custom lapel pins, a complete signed set of the Strangely Beautiful Saga by Leanna Renee Hieber (along with other signed books and limited eidtion ARCs), original artwork, custom songs written by wizard rock artists, and more. Early bird registration is available now through the project's page at $150 right here.

MISTI-Con is also proud to announce a shortlist of of special events planned for the convention including:

• The Opening Gala Spectacular featuring The Zero Hour Collective, a performance troupe from Chicago.
• A special performance by Charlie Ross (of One Man Star Wars and One Man Lord of the Rings fame).
• A Wizard Rock Nightclub Show Staring: Diagon Alley, Undesirable #1, The Blibbering Humdingers, Lily and James and more!
• The Ministry Masquerade Ball.

Be sure to check out MISTI-Con at www.misti-con.org and follow them on Twitter, Facebook and Tumblr. They can be reached at info@misti-con.org.

A new article from Reuters reporting a drastic increase in ebook sales due to the recent release of the Potter series and boost in overall profits for parent company Bloomsbury, also mentioned something that may be of interest to Potter fans:

Bloomsbury, the publisher of the "Harry Potter" series by author JK Rowling, also said it was counting on a new Rowling three-book box set tied into the Potter series, and a non-fiction account of spies in World War II to support sales in the coming year.

While we do not know what this "three-book set" is referring to, we are certainly intriqued by this news article.

What do you think this means? Let us know in the comments below.

J.K. Rowling recently updated her website to let people know that there are currently no plans to release an enccyclopedia in book form, and that for the time being all new Potter information will appear on Pottermore.

Updated May 2012

I have been enjoying sharing information about Harry's world on Pottermore for free, and don’t have any firm plans to publish it in book form.

This update comes in stark contrast to her previous statement that was released when Rowling announced The Casual Vacancy and relaunched her site back in April.

For a long time I have been promising an encyclopaedia of Harry's world, and I have started work on this now – some of it forms the new content in Pottermore. It is likely to be a time-consuming job, but when finished I shall donate all royalties to charity..

The above statement has since been removed from her site.