jawdrop
Here are the important levels of canon, in order from highest to lowest:
G-canon
T-canon
C-canon
N-canon
The movies is G-canon.
The novel is C-canon.
If not contradicted by a G-canon source (or a T-canon source), the C-canon source is indeed canon.
If it is contradicted by a G-canon source (or a T-canon source), the C-canon source is non-canon.
Same goes for other parts of the novels. Dooku throwing tables at Anakin is non-canon. Anakin watching Mace and Sidious fight is non-canon. The dialogue in most of the fights are non-canon.