I found this coupon on SD. I wonder if they will let you stack this with their offer on Wednesdays where you get a voucher for a free small popcorn or credit towards a medium or large popcorn when you present your MovieWatcher card. If so, you could just pay the $2 to upgrade to a large popcorn and get the free large drink.
The coupons they had for October for a free large drink (no purchase required) worked like a charm, I was able to get the large popcorn and drink for only $2 every Wed.
