Got an email today - The Wallace and Gromit Cracking Newsletter - which contains this information;
To celebrate the 15th anniversary of Wallace & Gromit’s partnership with Wensleydale, you will be able to grab yourself a free cheesy cookbook with 200g packs of Wensleydale. Containing our famous duo’s favourite cheese recipes, the cook book will launch in Morrisons on the 21st of February and continue to roll out across other stores during the month.http://www.wallaceandgromit.com/forum/read/47009/1
I've never had Wensleydale but as a cheese lover I'm wiling to give it a try - recipe book could possibly be a collectors item even if you don't use it :o)
I'm assuming it is instore only as I guess you will have to pick it up. If anyone finds it in the 'other' stores, please let me know, thanks.