'Creed III' wins a split decision in a sequel boxed in by its 'Rocky' formula

The "Rocky" sequels aren't exactly known for their nuanced opponents, so give "Creed III" credit for trying to flesh out its antagonist, played by Jonathan Majors. But bulking up the back story slows the pacing, in a movie that finally delivers the goods but whose broader ambitions under director/star Michael B. Jordan get boxed in by its ring-shaped formula.