Film score nights sell out too. :-) CB is a shallow Stravinsky rip off.
Depends on the film score. We were one of the cities on the Lord of the Rings tour and those performances sold out so fast, they opened a rehearsal to the general public. I would imagine an evening of John Williams might sell out and then you'd have the whole orchestra and chorus going, "That's from Belshazzar's Feast" "That's from Swan lake" "That's from Dvorak", etc. Captain Blood, OTOH, did not sell out.