This is a pretty sweet offer from Empire Theatres! All you need is a cellphone, and a willingness to go to the cinema! You can get a free 2 for 1 admission coupon for your next visit to Empire Theatres.
How to get it: text BOGO to EMPIRE (367473)
They will reply with a link in a message. You click the link, it shows a barcode on your screen, which can be scanned at the cinema, giving you 2 tickets for the price of 1!
Your cellphone needs to be able to access the internet, in order to take advantage of this offer - but I think most phones do this anyway, nowadays. I saw one complaint on another forum that someone got an error as the screen on their phone wouldn't accept the barcode due to the screen size, but I guess you don't really know until you try.
Coupons expire Thursday, November 12, 2009. Only one coupon per mobile device during this promotion period.