There is new footage. A little bit of new footage during the 'her-mi-o-ne' scene. They show Harry stand up when Ginny comes in late to a slug party. They shot Ron and Lavander kissing on the stairs. They show a behind the scenes shot of Hermione in her Christmas dress, but i don't think they were actually filming during that bit. Most of it is the same stuff we have seen before with the actors talking throughout. There is only a few new shots.