How can I redeem my Free Child Ticket through the Odeon Cinemas promotion? For terms and conditions regarding how to redeem this offer, please visit here. Related articles How do I redeem my Kellogg's Grown Ups Go Free voucher? How do I redeem my McDonald's 50% off voucher? How do I redeem my Cadbury Free Ticket promotional voucher? What do Tickets for LEGOLAND Windsor Resort include? How do I use the National Rail Days Out Guide 2 for 1 offer?