Queen Elizabeth got a lesson in drama from the other 'Queen' last night.
But Helen Mirren, famed for playing the queen on stage and screen, admitted to still being in awe of her despite meeting her a number of times.
Some of Hollywood's leading actors were left starstruck by the monarch after she hosted a night in celebration of the UK's dramatic arts at Buckingham Palace.
Speaking about being introduced on the red carpet, Mirren said: "You're thinking 'it's the queen, it's the queen'."
And when asked if she still got starstruck, replied: "Of course, even more so I think because I feel self-conscious, you know."
She added: "I am genuinely always astounded by her aura, her twinkle, her presence.
"It never fails to surprise me and again it's what everyone says when they meet her – it was what overwhelmed me the first time I met her."
The Buckingham Palace event featured a who's who of leading film makers, entertainers and thespians from directors Steve McQueen and Mike Leigh to actors Ralph Fiennes, Roger Moore, Joan Collins, John Hurt and Alan Rickman, and writers Tom Stoppard and Alan Bennett.
Soon after comic Lenny Henry was introduced to the queen he joked to other guests: "This is Helen Mirren – she's brilliant".
Kate Middleton joined the queen for the evening wearing a striking red Alexander McQueen dress.