What was the subtitle of the 2021 director's cut of Rocky IV?

The subtitle of the 2021 director’s cut of Rocky IV was Rocky vs. Drago.

The full release title was Rocky IV: Rocky vs. Drago – The Ultimate Director’s Cut. Sylvester Stallone recut the 1985 film for its 35th anniversary, adding roughly 38 minutes of previously unreleased footage and alternate takes while removing or shortening other material.

The revised version gives greater emphasis to Rocky Balboa and Apollo Creed’s friendship, extends both major boxing matches, and presents a more serious dramatic tone. One of its best-known changes is the removal of Paulie’s robot scenes, which were part of the original theatrical cut. The director’s cut also alters the presentation of Ivan Drago, the funeral sequence, the soundtrack, and the final speech.

A common mix-up is treating “The Ultimate Director’s Cut” as the subtitle by itself. That phrase is part of the complete marketing title, but “Rocky vs. Drago” is the distinctive subtitle used to identify the 2021 re-edit. It received a one-night theatrical release on November 11, 2021, followed by digital availability the next day.