https://en.wikipedia.org/wiki/Kill_Bill:_Volume_1
Volume 1 is the first of two Kill Bill films made in a single production; Volume 2 was released six months later. They were originally set for a single release, but the film, with a runtime of over four hours, was divided in two. This meant Tarantino did not have to cut scenes
A single film combining both parts, Kill Bill: The Whole Bloody Affair, is scheduled for December 5, 2025.