United Kingdom, Jan. 20 -- Claire Foy has likened starring in The Crown to being in a "blockbuster film".

The 41-year-old actress portrayed Queen Elizabeth II in the first two seasons of the Netflix royal drama and says that the attention that came with the role was transformative for her career.

Claire told the Radio Times magazine: "I'd been working for almost 10 years when I made it, but nobody knew who I was. It was like being in a blockbuster film.

"Afterwards, I got opportunities I'd never had before. It's like the biggest promotion you can imagine."

The H Is for Hawk star admits that she doesn't worry about being defined by The Crown.

She said: "I don't think it's a double-edged sword. I doubt Olivia Newton-John hated being kn...