I agree that in assigning something as “the worst” it can’t be just schloky bad like “Santa Claus Conquers the Martians”. It has to be a movie that was intended to be good with names associated with it that had done well before and/or did well afterwards. To me, the worst movie I ever saw was 1968’s SECRET CEREMONY starring Elizabeth Taylor and Mia Farrow. This was Farrow’s first release after the tremendous success she had with ROSEMARY’S BABY and there was much anticipation that this would be a worthy next step and the night I went to this movie the theatre was packed. It turned out to be the first movie I ever attended that people actually walked out of in droves. By the end of the movie (I stayed until the end thinking, mistakenly, that it HAD to get better) over half the audience had left. A close second has to go to Jeremy Irons’ DEAD RINGERS from 1988. This was another movie with an actor that I liked that had the audience walking out on.
In the "So bad it's good" category, I'd nominate the weird musical "The Apple," It's one of those movies where, just when you think your jaw can't drop any further, something else comes along that proves you wrong. it ends with God coming to earth in his gold Oldsmobile to save the hippies from the world dictator record producer/devil.
The subject of gynecological instruments for mutant women was not amusing?
In my time, I've walked out of Boeing Boeing, Wait Until Dark, Natural Born Killers, and Enchanted April. There were only those four because I am normally careful about what I see. For instance, anything with Meryl Streep is out of the question.