Dr Rick Strassman's book DMT: The Spirit Molecule (Amazon US and UK) was a surprise hit a few years back. In the book, Rick Strassman looked back on his (completely legal) research into the potent entheogen dimethyltryptamine (DMT), one of the main components of the Amazonian shamans' brew ayahuasca, recounting how many of his volunteer research subjects underwent 'contact' with strange entities.
Well, now a documentary of the same name is being produced on the topic:
THE SPIRIT MOLECULE weaves an account of Dr. Rick Strassman's groundbreaking DMT research through a multifaceted approach to this intriguing hallucinogen found in the human brain and hundreds of plants. Utilizing interviews with a variety of experts to explain their thoughts and experiences with DMT within their respective fields, and discussions with Strassman’s research volunteers brings to life the awesome effects of this compound, and far-reaching theories regarding its role in human consciousness and evolution.
Participants include Rick Strassman (of course...he's also co-producer on the film), Graham Hancock, Alex Grey, Jeremy Narby, Erik Davis, Daniel Pinchbeck and Whitley Streiber. The website is very nicely put together, although some sections are still to be completed (notably, the 'Media' section). Certainly something to look forward to.