If you have a mastercard you can get the ticket free. If you only have a Visa or something else, you may have to book 2 tickets and use the voucher code to get one free, and then pay for one ticket - still good at BOGOF.
Valid for 3 Months
1) Click on the link
2) Enter Your details
3) Enter 54345 or 54046 for the Mastercard number
2) Enter a random 9 digit number for the booking reference (Needs to be unique)
You should then be emailed a free Adult price discount code to use on the Cineworld Bookings page... http://www.cineworld.co.uk
TIP: If using home broadband, switch your router off and on again, restart PC/laptop. If you have dynamic IP addressing then you should now be able to claim another voucher using a different email address and name. Repeat the process...