For a successful movie night, essential supplies include a good selection of films, whether on DVD, Blu-ray, or streaming services. A comfortable viewing area with cozy seating, such as couches or bean bags, enhances the experience. Snacks are also crucial; popular choices include popcorn, candy, and chips. Beverages like soda or juice can keep everyone refreshed. Don't forget to have blankets and pillows on hand for added comfort during the movie marathon.