J.K. Rowling, author of the Harry Potter book series, has posted on her official website about how she has 3 tentative titles for the seventh and final book:

I've now got a third title. I've been thinking back, and I know that I've had more titles than this for a couple of the previous books, so I'm not too worried by this. Title three currently ahead by a short nose, or perhaps that should be a vowel and two consonants.

I've just had a great writing week. There are few feelings more joyous than reading back over the week's work and thinking 'that's not bad at all', as opposed to the all-too-frequent, 'it's rubbish, I've wasted a week and I'll have to re-write the lot.' And if you think that's an exaggeration or false modesty, you are very, very wrong. It's perfectly possible to put in eight hour days and have nothing to show for them but a single idea that, if reworked completely, might be passable.

The movie Harry Potter and the Order of the Phoenix, an adaptation of Rowling's 5th book in the series, will be released in both conventional and IMAX theatres on July 13, 2007.