>and I can't get certain documentaries, notably Wintonick's _Cinema >Verite: Defining the Moment_.  Nobody has it.

You can order it directly from the National Film Board of Canada, US phone number is 1-800-542-2164.  It appears to be $19.95 VHS for home use though the institutional price is $295.  That price is probably one reason you can't find it:  the university library I use has the tape but this seems an unlikely purchase for most public libraries.  The other reason is that I suspect this was distributed to the video trade so video stores probably were never offered the title (or reasonably enough would have balked at the cost).

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