The newly released movie centers around the life ofPrincess Dianaand Stewart has the starring role.

Stewart toldDaily Mailthat the two were taken aback by her lack of knowledge about the royal family.

“‘They were like, ‘Well, did you know them?

Kristen Stewart looking to the side

What actually happened was…’ I was like, oh, okay!'”

Her young co-stars benefitted from a British upbringing and surely had plenty to share.

Kristen Stewart and Princess Diana

Kristen Stewart felt the pressure of playing such a beloved historical figure.

Kristen Stewart touching her hair

Or maybe I want to date her?'"

“I do remember the flowers in front of Buckingham Palace …

I had a very vague and general idea about her,” she said.

Speaking withEntertainment Weekly, she shared that she more or less binged it.

“I watched it probably in one night.

I think [actress Emma Corrin] did a really beautiful job.

Playing Princess Di in “Spencer” could prove to be Stewart’s career-defining role.

By keeping an open mind and learning what she could where she could, she surely did Diana justice.