Sacha Baron Cohen caused a scene at Milan Fashion Week in Italy by jumping onto the runway unannounced.The comic is currently filming scenes for his new movie "BrĂ¼no: Delicious Journeys Through America for the Purpose of Making Heterosexual Males Visibly Uncomfortable in the Presence of a Gay Foreigner in a Mesh T-Shirt."And his latest stunt sparked a major security scare. Cohen interrupted Agatha Ruiz de la Prada's show on Thursday by jumping onto the stage and strutting along the catwalk in character, prompting organizers to call the police. The comedian also caused fashion week chaos the day before by bursting in to a changing room full of models ahead of the Dsquared show. Cohen and his crew were removed and banned from the event.