Working my way through the canon :) From the interview with Paul in the features:
Watch the hands...
The interview wasn't about the film (there was a separate featurette about that); but was about his childhood and early training.
One bit I must quote, talking about his teenage job working in Stratford: I remember watching Maggie Smith rehearsing something [...] and having trouble with the scene and saying "I don't know what the hell's going on here." And Robin saying, "You're thinking of it like a forest but it's actually like an ocean," or something along those lines; that [...] at least to me had nothing seemingly to do with the context of the scene. And her saying, "Oh, yes, I see what you mean," and I thought, "Oooh, right, there's some transaction there that is secret and shimmering and I would like to be part of that."
He got quite enthusiastic about that :)
And at the end there was a tacked-on piece from an interview he must have done on the set of Due South:
That was dated 1997, versus the rest in 2002.