You can watch Knives Out 3 where it is officially available for streaming, purchase, or rental depending on your region and the current release window.
Availability changes as the film moves through theatrical, premium video-on-demand, and subscription streaming windows, so checking your local catalog is the most reliable way to confirm access.
This guide covers the most common ways to see the film, compares leading platforms, and explains how to find the right option for your location and viewing preference.