Ram Gopal Varma in an interview to a website said, "With Mr Bachchan, there is a relationship of respect and trust. Although he is much more senior to me and my work is nothing compared to his, when I instruct him something, he listens to me. He is a director's delight."
Ramu further added, "He knows that my intention is always to make a good film. Sometimes, it works and sometimes, it doesn't. He is not the kind of actor to bother about all this. He is a superstar despite the bad films he may have done."
Well, Ramu no doubt Amitabh Bachchan is a superstar despite the fact that he has done some really bad films like Aag and Department!!