1.This would be a most promising candidate except for the unfortunate circumstance that it was mothballed from 1992 to 1998, neatly bracketing the events in the early part of Order of the Phoenix, for which the canonical date is 1995, as I have already discussed.
2.WB just confirmed that the release date of the Harry Potter of the Order of the Phoenix film, formerly set for Sept. 6 in Australia, has been moved up to July 12 there - even before it hits the US and UK.