It took a while to find him, but we got Paul Stark on the phone. He's the guy who had a week's worth of gigs at the 7th Street Entry videoed in 1981 which in turn became "7 Nights at the Entry."
Sound Unseen has indicated its screening of the film, which includes numbers by Husker Du and the Replacements amongst others, may be the only time it will be shown.
However Stark says it may be available in another form. In his interview from Glacier National Park (of all places) he says he expects he'll eventually post the material online, although it may not be for another year or two.