For all the guys who signed upto the £15 free voucher on http://www.crowdity.com
for Krispy Kreme Doughnuts, the best option I can see to redeem the voucher is to book 2 Cineworld tickets for £5 for any day. (unless somebody suggests something better)
The last day to get the voucher is 14th February but can be used in the next 10 months or so.
Also u can buy 2x 3D tickets for £10.