Hollywood actor and former California governor Arnold Schwarzenegger, who was addressing a session at the Hindustan Times Leadership Summit in New Delhi on November 22, spoke about how his 10-year-long rivalry with colleague Sylvester Stallone transformed into friendship. Mr Schwarzenegger said: "It was all out war. We hated each other, we wanted to outdo each in every way - who has the most muscles, who has the least body fat, who kills more people on screen, who kills them in the more unique way, who makes more money in the box office. And then after 10 years, in the nineties, we became friends. Now we make films together."