Indeed Ze'ev made a documentary about wine, that more than a decade ago. Ze'ev had actually caught the "wine bug" before that and it was precisely this new-found love that led him to make the film. It was through that film (in which I played somewhat of a "starring role") that I first met Ze'ev. And that was well before he even conceived of the idea of opening a winery.
Best bet to see about obtaining a copy or arranging a screening might be to contact Ze'ev directly. Try him by email to firstname.lastname@example.org