Just got back from TRU. I was able to get all the discs we were missing and help a few others with my duplicates. We got coupons, checklist and a Infinity plastic bag. I guess that is the Trick or Treat bag?
A Gamestop manager was there as well since TRU had the exclusive Tron disc. He told me his store has a box behind the counter for people to swap duplicates. So after TRU I went over there and swapped out my remaining duplicates to start a second set for my nephew.