Ultra realistic cinematic video of a real cat. Natural daylight, detailed fur, authentic whisker movement, realistic eye reflections, real textures, shallow depth of field. Slight camera shake like handheld shooting with a mirrorless camera. Soft ambient sound. No cartoon style. Realistic lighting, realistic shadows, real-world colors. High-resolution close-up details, smooth breathing movement, natural blinking. A cat serves as a sports support volunteer, cheering for the athletes at the Olympics! It keeps cheering and shouting, with a red cheering headband tied on its head, handing sports drinks to the Olympic athletes.