For one day only, you can bring your own empty popcorn bucket and for $5, Cinemark will fill it. Customers are encouraged to “get creative and bring in any container, tote, or bag,” up to 400 ...

For $5, all Cinemark theaters ... "Cinemark reserves the right to refuse any bucket deemed unsanitary or a potential health risk," the website notes. Of note, a 3-gallon bucket is 384 ounces.