I edited this video myself, but got the footage from other videos.
You can watch those here:
youtube.com/playlist?list=PLE_m6o0VPfoPI1Psc2zlzUxduWdl5nssR
My Behind the Scenes of Harry Potter Playlist:
youtube.com/playlist?list=PLE_m6o0VPfoNnnS5PfrPi-eGe1jdjaIjU
Category : Behind the Scenes