AMC Movie Theaters - Free Large Popcorn or Large Drink Contest ends 12/28/18. The free coupons are valid until 2020, so there is plenty of time to use these rewards. There are 100,000 total winners, so join the instant giveaway before they run out of prizes. 25 entries per account per day. You can only win 1 prize per account , so once you win, you can no longer enter. CLICK HERE then click "Use My Entry" 50,000 POPCORN PRIZES: A coupon for a free popcorn at AMC Theatres®, terms and conditions apply. Approximate Retail Value of each Popcorn Prize: $8.49. 50,000 BEVERAGE PRIZES:A coupon for a free large beverage at AMC Theatres®, terms and conditions apply. Approximate Retail Value of each Beverage Prize: $6.19.