Just wanted to let people know about this bargain - and I promise I'm not selling anything 
If you sign up to Tastecard for £1 for their 90-day trial, you get 2 free Odeon cinema tickets. You just have to remember to cancel the card at the end of that period as it auto-renews. You then can get discounts for various restaurants (but I don't think we'll use this feature much if at all). Hope this helps somebody 