Sci Fi Wire has a brief article about their visit to the "Prisoner of Azkaban" film set in which Emma Watson (Hermione Granger) discusses working with Alfonso Cuarón:
"Especially for me as someone who hadn't acted in anything else before, it was great working with a new director and doing something different, seeing different techniques, different ideas, all that kind of stuff," Watson said in an interview.
She added, "I think there's definitely a difference in style by just looking at the two. I've only seen a few clips of this third one that's coming out, but Alfonso's done some amazing things with camera angles and camera shots. And this one is much more flowy. I don't know. You can just tell the difference. Especially with the director, a lot of himself goes into what he's doing, and you can definitely tell the difference."