Her other films include Leaving (2009), Love Crime (2010), Sarah's Key (2010), Nowhere Boy (2010), The Woman in the Fifth (2011), Only God Forgives (2013), Darkest Hour (2017), and Tomb Raider (2018).

[13] After a year at Central, speaking French fluently, she decided to move to Paris to work as an au pair,[2] and studied acting at the École Nationale supérieure des arts et techniques du théâtre (ENSATT).

Kristin Scott Thomas's acting career garnered early attention when she was cast as Mary Sharon in Under the Cherry Moon, released in 1986, the first but widely panned film directed by and starring the already well-known musical artist, Prince.

Her breakthrough role was playing Brenda Last in an adaptation of Evelyn Waugh's A Handful of Dust (1988), winning her the Evening Standard British Film Award for the most promising newcomer.

She returned to the stage in 2003 when she played the title role in a French theatre production of Racine's Bérénice, and appeared on-screen as Lady Sylvia McCordle in Robert Altman's Gosford Park.

This started a critically acclaimed second career on stage, in which she has received four nominations for a Laurence Olivier Award for Best Actress, including one win, for her performance of Arkadina in a London West End production of Anton Chekhov's The Seagull.

In 2008, Scott Thomas received many accolades for her performance in Il y a longtemps que je t'aime (I've Loved You So Long), including BAFTA and Golden Globe nominations for Best Actress.

In Sarah's Key (2010) – the story of the Vel' d'Hiv Roundup – Scott Thomas starred as an American journalist in Paris who discovers that the flat her husband is renovating for them was once the home of an evicted Jewish family.

Other roles include Elizabeth Boleyn, Countess of Wiltshire and Ormond, mother of Henry VIII's second wife Anne, in The Other Boleyn Girl (2008), the role of a fashion magazine creator and editor in the film Confessions of a Shopaholic (2009), and as a love interest of George Duroy (played by Robert Pattinson) in the 2012 film Bel Ami, based on the 1885 Maupassant novel.

She appeared in Israel Horovitz's My Old Lady (2014) and Suite Française, the 2015 film adaptation of Irène Némirovsky's World War II novel directed by Saul Dibb.

[20][21] In 2020, Scott Thomas played Mrs. Danvers in director Ben Wheatley's adaptation of Daphne du Maurier's Gothic romance Rebecca, with Armie Hammer and Lily James.

[22] Also that year, she appeared in the BBC television remake of Alan Bennett's monologue series, Talking Heads, playing the role of Celia in the episode "Hand of God".