VFXWorld has two articles describing the VFX work in Mission: Impossible III and Poseidon. VFX Supervisors Roger Guyett and Kim Libreri discuss the extensive work ILM did on the films.
The Poseidon article also describes the extensive work The Moving Picture Company did on Poseidon:
There is also an article about fmx 2006, which includes a mention of Christophe Hery's presentation:
Thanks to Shane for the heads up.