According to widely discussed information, the dog's death in the scene was not real. The film used filming techniques to simulate the dog's death. In many films of that era, animals were often used in specific scenes, but frequently in a staged manner or with special effects. Although the film is known for its dark and realistic tone, there is no evidence that the dog was actually killed for the shoot.
Therefore, the dog's death was most likely staged, a common practice in films of that time to avoid real animal suffering.
