As the title says, a new cinema has opened at Merthyr Tydfil & they are currently running a "Cheap Day Tuesday" promo.
You sign up, & get a card which can either be handed in at the cinema to get you the cheaper prices or it has a code on it for you to enter when you book on-line. ( Sorry, I haven't got a code yet)
There's no cost for doing it.
I "think" it's specific to this cinema - I checked a couple of others & couldn't see it.