FWIW, this is already out in Australia and New Zealand, with a second disc with PD versions of REEFER MADNESS and NIGHT OF THE LIVING DEAD. Pretty good flick, was surprised how much I didn't know on the topic, though I'm sure for others that will be less the case. But who can't sit around and listen to John Waters tell stories?
This was on TV in the UK (on ITV4, IIRC) several months ago, before its theatrical and DVD releases! It's definitely worth watching if you are fan of any of the films/filmmakers involved. The UK DVD, which I haven't seen, also has the extra films mentioned above.
The U.S. edition looks like it won't have the PD presentations of REEFER MADNESS or NOTLD, but that's fine. I have the Elite Millenium NOTLD and that's good enough.
I wish New Line would have the creative whimsy to put out a nice clean REEFER MADNESS, since it is technically the first film they ever released. Even the so-called "complete" version from Legend Films is missing material.