Business-style poster background for National Day Film Review Contest, with bright blue, yellow, and hints of red as primary colors. Cinematic and professional atmosphere, featuring floating movie tickets as dynamic elements. Incorporate abstract film strips, smooth gradients, and polished, elegant design. Clean and formal layout, festive yet corporate, suitable for a large-scale film review event, with a celebratory vibe, skyscraper silhouettes, and minimal yet dynamic details.