I’m going back to buying DVDs.
I’m not even seeing a way to buy tickets now.
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You might try the Evidence Explained forums answered regularly by Elizabeth Shown Mills. She is a specialist in genealogical citation but she is based in Chicago Manual of Style. https://www.evidenceexplained.com/forums/citation-issues
Or you could just take your best stab at a citation and wait for some eagle-eyed all knowing person to correct you 😄