Get a free Orange sim with 300 free texts. Offer came on a leaflet in wit the DVD of Hotfuzz.
Go to the site, enter your details and they will send you a free sime. Use your free texts and then chuck it away if you don't want to top it up.
If you do decide to keep it, Orange do the weekly cinema offer of 2 tickets for the price of 1 (on a Wednesday)