The 66-year-old "Miss Julie" star said that the Queen is very delightful and funny unlike her serious public figure, reported Contactmusic.
"She does laugh. She makes jokes. She twinkles. I met her once in a fairly relaxed situation at a polo match. She was charming and funny, not at all the serious person we think of. There's someone else in there and I was desperate to bring that to the screen," Mirren said.
Mirren said that she respects the Queen because of the nobility of her character and thinks that it has nothing to do with her being the constitutional monarch.
"I'm not a great believer in nobility other than in nobility of character. Some people have that and it doesn't matter what class they are. The Queen is noble, but that has nothing to do with being born royal," added Mirren.
