Well, you saw the shock and surprise when Palps told Anakin to kill Dooku.
And, if you remember or if I remember correctly, in the AoTC movie, when Obi is captured and Dooku italks about Sidious and Obi refuses to believe it. Its when Obi was captured.
Its a little scene. I don't own the movie anymore but I remember it.
Just saw this response, as well as the ones from Burek and undeadsithdread, just now. Thanks for the answers guys.
With what we've learned here, it appears that Sidious was even more insidious
(get it?) than I originally thought.