A reliable source we've codenamed Pink Floyd chimes in with what is going to be a big spoiler in Episode II. While the topic has been debated already, this report should help supply ammunition for the debate. Spoiler warning!

There seems to be an endless debate over whether or not Count Dooku, played by Christopher Lee, is in fact the next Sith Lord Darth Tyranus.

I can tell you for certain that this IS the case. I was on set that day at FOX Studios in Sydney when Lucas was shooting scenes with Lee and McDiarmid. In this scene Dooku walks from his ship up to Sidious who is fully robed:

Christopher Lee: "The Force is with us, Master"

Ian McDiarmid: "Welcome home Lord Tyranus, you have done well."

Right before the scene was shot Lucas said "this is where Tyranus comes in for the first time." Take that how you will, but it seems to bring closure to the issue. I believe this will be near the end of the movie and will come as a huge suprise to the audience.

We've been saying this for a while in the Episode II character pages, but there's some really cool lines and more proof of what may turn out to be a big spoiler in Episode II.