Merlin's beard, I also thought that JD would be a good Sirius! Think about the long hair, the mysterious look. It's a pity that he's American, and we know the rule: "No Americans allowed". I don't think that was a stupid idea, I think that is the best thing that could have ever happened to a movie. And we already have Gary Oldman, and I think he will be the greatest Sirius we can ever imagine.