One of the magic things about walking through these studios [at Maida Vale] today was just hearing a symphony orchestra rehearsing.

The urge for me to rush in there, kill the conductor and take over the baton [was great] because once, in about 1977, they invited me as C-3PO to conduct the London Symphony Orchestra at the Albert Hall in London, as an encore to a John Williams evening of music.

It was the most extraordinary experience to walk out there as C-3PO, to the extent that I completely forgot that I was Threepio, because the audience reaction - eight thousand people all around you - was so humungous. I stood there, not petrified, just going 'Wow,' and then must have stood there a few seconds until, 'Oh wait a minute, I'm Threepio', and then carried on and did the whole thing.

We did it a couple of times, because to be faced by 80 plus orchestral musicians, waiting for you to do 'Wooh,' (mimes waving baton) and then they go... Oh, the power! It was magic. And that was just one of the great experiences I've had.