Historical clue formulations

• Pond scum, e.g. — 2026-05-03
• Cinema showing — 2025-09-22
• "___ at 11" (local news promo) — 2022-11-13
• Cinema showing — 2021-04-12
• "Argo" or "Fargo" — 2021-03-10
• Old camera need — 2019-08-13
• ___ Studies (college major) — 2018-12-30
• Take some shots — 2017-02-12
• Canon fodder? — 2012-10-28
• "Annie" or "Annie Hall" — 2012-02-27
• What each completed pair of theme answers in this puzzle is — 2008-01-17
• What soap may leave — 2006-01-02
• Kodak product — 2004-03-29
• Certain residue — 2000-07-23
• Thin veneer — 1998-10-01
• Eastman invention — 1998-09-11
• "M" or "V" — 1998-07-31
• Shoot — 1998-04-19
• Medium of this puzzle's theme — 1997-03-05
• Patina — 1995-05-18