The rumours recently flying around about Cuaron "ditching" the school uniforms-robes, of course- are nothing but rubbish, as was the no Quidditch rumour. The only reason that the trio are wearing "muggle clothes" in the pictures released so far is becuase they are scenes in which the robes are not needed. The only questionable picture is the one with Hermione and Draco... My guess is that the producers changed that scene so that it happened on a weekend, thus, robes need not be worn. And fear not! I have even more proof that this rumour is RUBBISH... Months ago, a picture from the set of Hagrids Care of Magical Creatures class shows the trio walking offset in their robes! Heres the link : http://www.thesnitch.co.uk/news/images/rhhonset.jpg