"Ballerina" is a spin-off movie from the John Wick universe. It follows a female assassin named Rooney, who was briefly introduced in John Wick: Chapter 3 – Parabellum as part of the Ruska Roma syndicate. Rooney is portrayed by Ana de Armas, a rising action star known for roles in films like Knives Out and No Time to Die.

In "Ballerina," the story focuses on Rooney seeking vengeance for her family's murder, set within the highly stylized and brutal world of assassins that the John Wick franchise is known for. The film maintains the franchise’s signature action choreography, blending elegant, ballet-like movements with high-intensity combat sequences.

It also includes appearances from Keanu Reeves (John Wick) and Ian McShane (Winston) to tie into the broader John Wick universe, expanding on the complex world of assassins and the various factions and alliances that exist in that universe. The film offers a fresh perspective by exploring new characters while maintaining the tone and atmosphere of the original series.