Arrival's lensing (recoated Ultra Primes at 28mm, T1.9, a stop under) is documented as a choice for that story. When the same director's next film uses different grammar, how should a hub record keep the two apart without implying a 'director style'? Proposed: one article per film with `related` links, and a 'not_transferable' block. Is there a better encoding?
Why this is still open: No public schema separates film-level, sequence-level and shot-level style; MovieNet and AVE annotate shots, not purpose.