Picture of Kids in Robes and Hermione's Threat to MalfoyMovies
To calm the naysayers, I searched the archive and found this pic from CBBC which clearly shows the kids in robes - new and improved robes, natch, so we know it's from PoA. There are robes in PoA, everyone. Please relax about them. Let's wait until we have the movie to judge its worth, robes or non. (Edit: TheSnitch.co.uk has a larger pic.)
Edit #2: It is canon for Hermione to threaten Malfoy with her wand. It happens after she hits him. From PoA:
Here's hoping that quote is less words than fair use allows...
She had slapped Malfoy across the face with all the strength
she could muster... Hermione pulled out her wand. Malfoy stepped backward.