The swords featured in the movie Kill Bill are real physical props created for the film's production. However, it is important to note that the swords used in the movie are not historical artifacts or genuine Japanese swords with historical significance. They are specifically designed and crafted for the purpose of the film.

The swords in Kill Bill, including the "Hattori Hanzo sword" wielded by the protagonist Beatrix Kiddo (played by Uma Thurman), are props created by professional prop makers and swordsmiths. These swords are made to resemble traditional Japanese swords, particularly katanas, in their appearance and design.

While the movie's swords may have some similarities in terms of shape and aesthetic with real Japanese swords, they are not authentic historical weapons. They are constructed for use in staged fight scenes and visual storytelling, and their materials and construction may differ from traditional swords.

It's important to remember that real Japanese swords of historical significance, such as antique katanas, are considered valuable cultural artifacts and are subject to preservation and regulation. The swords in Kill Bill, although visually appealing and inspired by traditional designs, are not part of that historical lineage.