Category Events - United States, Okoboji (IA) Have an Unexpired Magic Bucket? Now is the time to use it or buy one! This Sunday, April 8th and next Sunday April 15th Magic Bucket refills are FREE with ticket purchase! What is better than FREE POPCORN! Don't forget also that every Tuesday movies are just $5.00 plus tax all day(3D service charge applies) and Bucket refills are just .50 plus tax!