According to the search results, Bruce Willis last movie is "Assassin," a sci-fi action film released on March 31, 2023. However, it is worth noting that Willis has retired from acting due to a diagnosis of aphasia, a disorder that affects how you communicate. Therefore, it is possible that "Assassin" is the last movie that features Willis, but it is not necessarily his last performance. Willis has also been rumored to have a cameo role in Quentin Tarantinos final movie, "The Movie Critic," which is set to start filming in autumn 2023.