In addition to demanding removal of the film under the DMCA on the bogus ground that their copyright in the "Landmark forum leaders manual" is being infringed, they have issued subpoenas to try to identify the individuals who have uploaded the video.
The Electronic Frontier Foundation has acted to support the Internet Archive and Google in actions to fight the subpoenas; YouTube has notified its user and given them an opportunity to quash the subpoena. The EFF's website documents their activities and the status of the case.
These three videos include part of the content that Landmark Education is trying to suppress. The first begins with some references to Scientology and a quote from Christian anti-cultist Walter Martin (the late "Bible Answer Man," whose successor was discredited creationist Hank Hanegraaf), followed by video footage of Anthony Rapp from "Rent" talking about Landmark Education. It then goes into "Voyage Au Pays Des Nouveaux Gourous" beginning at about 3 minutes in, which is French with English subtitles. Unfortunately, this is not the complete show, though it does show some interesting undercover footage of Alain Roth of Landmark Education verbally abusing a woman at a Landmark seminar.
Landmark Education Part 1
Landmark Education Part 2
Landmark Education Part 3
UPDATE (December 10, 2006): Landmark Forum has withdrawn its subpoena of Google.