Fandango website:
http://mobile.fandango.com/?#

Fine Print:

$ 16 for Promotional Code good toward two movie tickets from Fandango ($ 13 per ticket, up to $ 26 total value (the “promotional value”).

Your Promotional Code must be redeemed online at Fandango.com or via the Fandango app by December, 31 2015 to receive the promotional value.

If the actual cost of the movie tickets plus Fandango’s convenience fee is more than the maximum value of Promotional Code, you’ll need to pay the remaining balance.
If the actual cost of the movie tickets plus Fandango’s convenience fee is less than the maximum value of the Promotional Code, you will not be entitled to use the balance in a subsequent transaction, or to a refund of the difference.

Promotional value expires Dec 31, 2015. Amount paid never expires. Starting on Jan 1, 2016, the Promotional Code will be valid for 2 movie tickets ($ 8 per ticket, up to $ 16 total value), and there will be no expiration date for the Promotional Code. Limit 1/person. FINAL SALE; no returns. Cannot combine with other promotional code, gift code, or Groupon Bucks. Only valid for purchases made at www.fandango.com or via the Fandango app for Fandango partner theaters in the U.S. and cannot be redeemed directly at any Fandango partner theater box office. Offer valid in U.S. and valid for 1-time use only. See additional fine print. Promo codes not valid on this offer. Merchant is solely responsible to purchasers for the care and quality of the advertised goods and services.