New Delhi, May 16 (IANS) Bollywood filmmaker Karan Johar, who has hit films like 'Kuch Kuch Hota Hai' and 'Kabhi Khushi Kabhie Gham' to his credit, was Monday appointed the goodwill ambassador of Britain's national tourism agency VisitBritain's global 'Britain You're Invited' campaign. He says he loves Britain for its culture and variety of options for entertainment.