And there's just one small issue with them. Apparently they have a typo.. so in the barcode, instead of the number 0 they have the letter "O". They're valid, they just wont scan properly.. so you can mention when you take them in that a typo is the problem, and it'll be fine.
Just so you all know (and thanks to Cheryl for finding out).
Has anyone used theirs yet? We went and saw War of the Worlds last night.. I really enjoyed it.