Singer/actress Jane Birkin has labelled her Don Juan co-star Brigitte Bardot a "crazy" Right-winger, driven to distraction after years of being judged by her looks. Birkin, who married French icon Serge Gainsbourg after he split with Bardot, insists the way the animal activist was treated on the set of the 1973 movie by her former husband and director ROGER VADIM sparked a life of supposedly erratic behaviour. She says, "The film was directed by her ex-husband Roger Vadim, who made her cry, saying she wasn't as beautiful as she used to be. "I'm sure that because people judged her solely on her looks and she was slagged off for getting older that it turned her into a crazy person who belongs to the National Front and only talks to animals."