Early career Miller first worked for top corporate law firm Freehills (now
Herbert Smith Freehills), at the same time joining the
Actors Centre. After getting married and while on maternity leave, Miller worked part-time at Shopfront Youth Legal Centre, a
community legal centre funded by Freehills. Here she had to deal with a lot of crises and emergencies, as well as many
sexual assault cases. She drew on these experiences when writing
Cross Sections. During this time (2000) she was also studying at NIDA, An early work,
Reasonable Doubt, premiered at the 2008
Edinburgh Festival Fringe at the
Assembly Rooms (Edinburgh) directed by
Guy Masterson, starring
Peter Phelps and Emma Jackson. and
New York Fringe Festival at
Cherry Lane Theatre, also in 2008, directed by
Lee Lewis, where it won the New York Fringe Overall Excellence Award for Outstanding Playwriting. The play features two characters who have just served on a jury and are now meeting for a date night. It runs for around 60 and at the
Holden Street Theatres in 2022. She has said that in general the UK and Europe are far more supportive of writers than Australia (although in some London theatre circles they see Australians as "racist and misogynistic" and "don't think Australia has a real arts culture or "based on first impression".
Prima Facie is a one-woman play first staged by
Griffin Theatre Company in Sydney in 2019, with Sheridan Harbridge taking the stage in a production directed by
Lee Lewis. in
London's West End in 2022, It is also being adapted as a feature film, with actress
Cynthia Erivo set to play the role of Tessa, to be directed by
Susanna White. The play is being reworked for a New York production. In July 2023,
Jailbaby, "
Prima Facie's spiritual successor" premiered at Griffin's
Stables Theatre. Although
Guardian reviewer Cassie Tongue gave it a middling review, the season sold out and the play returned in January 2024. The play's theme is the over-representation of
Indigenous Australians in prison. Miller has indicated that it is the second of a trilogy of plays. Directed by
Prima Facie director Justin Martin, it opened at The National Theatre 10 July 2025,, with global cinema release as part of NT Live. The play transfer to the
Wyndham Theatre in London's West End in 2026. The title
Inter Alia refers to the Latin legal phrase
inter alia, meaning "among other things".
Inter Alia is described as a kind of "double
soliloquy", in which judge Jessica Parks delivers both her public and private thoughts. Its topic is again about women and consent, with parallels to the 2025 Netflix hit series
Adolescence. ==Other activities==