I'm seeing THE PAINTED VEIL and THE LAST KING OF SCOTLAND this weekend.
I have yet to see NOTES ON A SCANDAL and VENUS because they haven't been released in my area (which is a HAPPENING area, our theatres just haven't picked them up. I've complained..)
A supporting actor, to me, is one who supports the film or the leading actor. "The Smee to Captain Hook." I don't think Judi Dench's character was a support to the Shakespeare character. Nor was she a support to the movie. She was merely a character with two good, brief scenes and an actress with a good performance.
For a true supporting role, look to Catherine Zeta Jones in CHICAGO. Djimon Honsou in BLOOD DIAMOND. Michael Sheen in THE QUEEN. Anika Noni Rose in DREAMGIRLS.
"The Spectacle has, indeed, an emotional attraction of its own, but, of all the parts, it is the least artistic, and connected least with the art of poetry. For the power of Tragedy, we may be sure, is felt even apart from representation and actors. Besides, the production of spectacular effects depends more on the art of the stage machinist than on that of the poet."
--Aristotle