TheSnitch.co.uk has just posted another, more detailed filming report from the set of Harry Potter and the Prisoner of Azkaban. Pictures are included, but the gems are in the written report:
... The next thing we saw was Tom Felton fiddling with a bike next to the set. It then turned out that it wasn't his, as someone came and wheeled it away. Behind him, a huge giant wooden cut out of a hippogriff was being dragged into place by a couple of prop guys.
The scene being shot was obviously the scene where Malfoy upsets Buckbeak and is attacked. During the rehearsal, we behind the fence could easily see Malfoy (Tom Felton) walking in front of the care of magical creatures class. We saw him move away from the group then we saw a man in red leap at him waving his arms – Felton fell very theatrically onto the ground and the scene was finished.
Devon Murray (Seamus Finnigan) and Rupert Grint (Ron Weasley) signed autographs for onlookers. Read the full report!