Historical clue formulations

• Up-and-down, as a relationship — 2024-01-07
• Title film character who declares "Nobody owes nobody nothing" — 2020-04-08
• Trainer in "Creed" — 2016-01-24
• First sports movie to win Best Picture — 2014-03-26
• Tumultuous — 2010-11-11
• Not smooth — 2009-01-18
• Having lots of ups and downs — 2004-02-23
• 1976 Best Picture — 2001-10-24
• Uncertain — 1999-02-20