Yeah, when Neville smiles, it blows the whole he-man image. I had to look him up on the web to make sure those teeth were not computer-generated.

As for Dumbledore, I guess I just liked the "hidden tiger" concept, where inside this mild-mannered, infinitely wise and patient fellow lurks the most powerful force on the planet. Harris never impressed me as an actor, and I've been a fan of Gambon's for years, so it's not the acting which is an issue for me, just the characterization.