Historical clue formulations

• Classic film said to be the most quotable movie of all time — 2026-06-07
• Acclaimed 1942 film banned in Germany until after W.W. II — 2019-05-18
• *Grand-slam drama that stars Bacall's man — 2014-01-12
• *1942 film with the line "What makes saloonkeepers so snobbish?" — 2007-07-17