Historical clue formulations

• See 45-Across — 2023-08-29
• "Great Dictator" player of 1940 — 2017-08-11
• Who said "All I need to make a comedy is a park, a policeman and a pretty girl" — 2017-08-04
• 1992 Oscar-nominated title role for Robert Downey Jr. — 2007-09-16
• Bowlegged comic of classic films — 2006-11-29
• Dictator player of 1940 — 2004-12-01