Just received a text from O2.
"For today only get ANY DVD, Blu-Ray, Boxset or Game RENTAL for £1 in Blockbuster Stores.
Simply quote 90756022 in-store. T & C's apply.
Dont know if this is any good to anyone. I dont think this offer (and reference number) is specific to individual O2 account holders ( I am sorry if thats wrong).