ok...i was watching the DVD....and like i dont know if this has been posted before but i couldnt find a thread about it.....
so....on the DVD see the scene just after ron falls out of the Devils Snare.....all 3 turn round to go towards the door to the flying keys and as ron moves forward to follow hermione and harry....theres a spare hand....wearing a watch...almost up to the elbow id say....holding onto the back of rons shirt and pushing him in the correct direction...now i checked...twice...and it cant be hermione's or harry's as they r infront of ron and too far away and this hand is holding the back of ron's shirt....and the hand is too large and looks male anyway but hermione is closest to ron.....
see if u lot can see it....its very obvious once u realise its there......