A video has emerged of British comedian and activist Russell Brand speaking to anti-capitalist protesters at a demonstration in central London, UK on Wednesday night. <br /><br />The controversial star made a surprise appearance at the demonstration after attending a press night for the launch of Made In Dagenham at the Adelphi Theatre earlier in the evening.<br /><br />Thousands of masked demonstrators descended on the streets around Westminster and Buckingham Palace in an organised protest called the