I watched this movie well over 100 times as a teenager. Always stoned AF, and with a procession of other people, who were either, equally stoned, or completely confused and unimpressed. My best mate and I knew every line and scene, and in the end watched the whole movie purely to see the second last scene, where the evil mountain/castle was being destroyed, and you could blatantly see the poles that had been holding up the model, descending into the ground. Absolutely brilliant. Only Cheech and Chong's Up in Smoke got more playtime on our VCR in the late 80s