The Spanish web site 3D Y Animacion has an interview (in English) with Miguel A. Corominas, technical director on the newly relased animated feature El Cid: The Legend. The interview contains interesting insight about the production process and the use of Softimage XSI to integrate 3D CGI with the 2D art in the 150 CG shots realized for the movie. More info about this Spanish production can be found on the official web site.
El Cid technical director interview