It was a long time ago 1982 but not long enough to forget my abject disappointment at Season of the Witch. I have read the reviews and there are some valid points but why attach it to Halloween? It could have easily been a standalone film and without the Halloween tag OK. I remember not much about the film or the ludicrous premise on the narrative. If I go to the movies to see, for example, the latest Bond I expect to see him in that movie as I expected to see Michael Myers, good or poor and there have been a few now. So my disappointment wasn't directly the film it was unexpected in a bad way.
