Kevin Costner's upcoming Western epic is exciting for many reasons, including comparisons to the 1990s classic Tombstone. After over three decades, the 1993 Western, which starred Kurt Russell and Val Kilmer, is still a beloved movie. There are many movies like Tombstone, but nothing satisfies the blend of classic Western narrative with modernized film aesthetics quite like it. The Western genre has changed significantly since its heyday in the '60s, with many modern Westerns looking to subvert familiar genre tropes. In a sense, Tombstone was a belated release for the old-fashioned style Western movies.
https://screenrant.com/kevin-costner-horizon-western-tombstone-similarities/