Prince Harry has joined Charlize Theron in a new AIDS campaign almost 40 years after princess Diana’s groundbreaking handshake with an AIDS patient. Princess Diana made history when she opened an AIDS ward in 1987 and shook hands with an AIDS patient. (Anwar Hussein/Getty)Prince Harry has now joined Charlize Theron, Magic Johnson and other celebrities in appearing in a short film, produced by Oscar-nominated writer Ron Nyswaner, that rallies for support for HIV/AIDS amid global cutbacks. Prince Harry has joined Charlize Theron in a new AIDS campaign. Nyswaner wrote 1993’s Philadelphia, starring Tom Hanks, which follows a young Philadelphia lawyer who is infected with AIDS and keeps his homosexuality hidden from his employers.