Â© Licensed to London News Pictures. 30/10/2011. London, UK. A man dressed as film character 'The Mask' buys a can of coke at a vending machine. The London Comic Con today, 30th October 2011 as fans of comics, computer games and Sci-Fi movies,  dress up as some of their favourite characters. The London MCM Expo takes place on 28-30th October 2011 at the excel centre in London.  Photo: Stephen Simpson/LNP