Sienna Miller has worked with some of the biggest stars in Hollywood like Bradley Cooper, Daniel Craig and Clint Eastwood, but the actress revealed she recently ‘fangirled’ over a surprising star: Peppa Pig voice actress Amelie Bea Smith.

The 40-year-old actress and mother to nine-year-old daughter Marlowe Ottoline Layng Sturridge revealed she works with the 11-year-old Smith on her new Netflix series Anatomy of a Scandal, which debuts on April 15.

Miller appeared on Thursday’s episode of The Tonight Show Starring Jimmy Fallon where she opened up about her work with Smith on the new series.

Fangirl: Sienna Miller has worked with some of the biggest stars in Hollywood like Bradley Cooper, Daniel Craig and Clint Eastwood, but the actress revealed she recently ‘fangirled’ over a surprising star: Peppa Pig voice actress Amelie Bea Smith

Peppa star: The 40-year-old actress and mother to nine-year-old daughter Marlowe Ottoline Layng Sturridge revealed she works with the 11-year-old Smith on her new Netflix series Anatomy of a Scandal, which debuts on April 15

She first praised David E. Kelley, who co-created the series with Melissa James Gibson, stating, ‘Not too shabby. The guy can write. We’ll give him that.’

Miller added that his co-writer Gibson was, ‘also a sublime writer,’ before Fallon teased that she told him she worked with, ‘one of the biggest stars you’ve ever worked with in your career.’ 

‘Bradley Cooper, Clint Eastwood but whatever because I worked with Peppa Pig,’ she joked, referring to Smith, as Fallon showed a photo of the voice actress. 

Writers: She first praised David E. Kelley, who co-created the series with Melissa James Gibson, stating, ‘Not too shabby. The guy can write. We’ll give him that’

Big star: ‘Bradley Cooper, Clint Eastwood but whatever because I worked with Peppa Pig,’ she joked, referring to Smith, as Fallon showed a photo of the voice actress

‘That is the voice of Peppa Pig. And I’ve never fangirled out on anyone, like it was just — it was really too much,’ Miller admitted.

‘Like, I’d sit there across set with my cup sort of staring at her. And then make her facetime my daughter relentlessly, and she was such a pro, you know she was, like, nine,’ Miller added. 

Miller said she has, ‘all these voicenotes. Like, “Hello, Marlow,” from Smith to her daughter Marlow.  

Fangirl: ‘That is the voice of Peppa Pig. And I’ve never fangirled out on anyone, like it was just — it was really too much,’ Miller admitted

The actress also added the series hails from, ‘the people who did Big Little Lies and The Undoing,’ adding it’s the same, ‘six-part format’ used in those shows.

Miller said she plays, ‘the wife of a Tory politician in England who is caught having an affair and it evolves into all sorts of drama.

She stars alongside Michelle Dockery, Naomi Scott, Rupert Friend

Character: Miller said she plays, ‘the wife of a Tory politician in England who is caught having an affair and it evolves into all sorts of drama

Format: The actress also added the series hails from, ‘the people who did Big Little Lies and The Undoing,’ adding it’s the same, ‘six-part format’ used in those shows

Miller was visiting during The Tonight Show’s Grandma’s Week, where she shared an interesting story about her mother. 

‘I didn’t know one of my grannies the other one lived in South Africa, but my mother started the first ever exercise-based school in England in the ’70s,’ Miller said, adding it was called, Granny’s Beautiful Bodies. 

She said the school was, ‘kind of like a yoga Alexander technique combo ballet, balletic,’ where stars like Albert Finney and Ava Gardner attended.

Mother: Miller was visiting during The Tonight Show’s Grandma’s Week, where she shared an interesting story about her mother

Granny: ‘I didn’t know one of my grannies the other one lived in South Africa, but my mother started the first ever exercise-based school in England in the ’70s,’ Miller said, adding it was called, Granny’s Beautiful Bodies.