DR ChasSmith, you saw the premiere of Thundercrack? I'm impressed.
West coast premiere, as I later found out. It had had a NYC audience before ours which was a midnight showing at LA's FILMEX festival around 1976. It was run in the larger of the two Plitt Century City theaters, a helluva challenge for a low-light low-budget 16mm film, but it worked and it was an unforgettable evening.
It's a long film. A lot of material was subsequently cut for some midnight showings at the Nuart, one of LA's leading revival houses, and I think only that cut version went around for years until the last remaining copy of the film (only five prints existed) was salvaged and used for reconstruction of the uncut version for release on Blu-ray by Synapse.