Remember the Batman: Arkham City trailer MTV posted yesterday that was region locked to the US? Well, Warner released it to everyone else today, so now you can watch it. It’s posted below, courtesy of Machinima. In it, The Joker is showcased along with his crew of deadly henchmen. Arkham City is out October 18 in North America and October 21 in the UK on PS3 and 360. The PC version has been delayed into November.