Runway Unveils Act-Two to Transfer Full-Body Performances to AI Characters

AI-video company Runway has introduced Act-Two, a next-generation motion-capture model that builds on last year’s Act-One release. The new system is available immediately for enterprise users on the Runway platform. Act-Two can extract an actor’s head, face, body and hand movements from a single performance video and apply them to any digital character, maintaining timing, delivery and subtle expressions across styles and environments. Runway says the upgrade delivers higher fidelity and consistency while eliminating the need for green screens or multi-camera rigs. The launch adds to a wave of generative-AI tools aimed at streamlining film and advertising production. Analysts say more realistic, low-cost performance capture could accelerate content creation while raising fresh questions about the future role of human actors and crew.