During the BAFTA's this weekend, Harry Potter baddie, Jason Isaacs (Lucius Malfoy), discussed his disappointment at not appearing in Half-Blood Prince but is hoping to return for the Deathly Hallows movie.
I hope I'm coming back for seven. Dan's going to Broadway to do his play for a long time, so I don't know when or if I'm going to come back. But I'll be even more bitter if I don't get to return for seven!
Isaacs also told us how positive the Harry Potter experience was for him and many of the actors involved. Everybody likes each other and knows each other. The whole thing goes very easily and there's none of the normal tension you have on films wondering about whether it'll work, because we know it works.