Moaning Myrtle: Oh sure, let's all throw books at Myrtle, because she can't feel it! Ten points if it goes through her stomach, fifty if it goes through her head!
In the dueling scene, when Snape pulls Malfoy back onto his feet, a cameraman is visible on the far left of the screen.
There is an extra scene after the credits. You see the after affect of Lockharts backfire of the 'Obliviate' spell.