She continued acting in films such as The Ghost Writer (2010), Hanna (2011), Anna Karenina (2012), Hyde Park on Hudson (2012), Sabotage (2014), Maps to the Stars (2014), Victoria & Abdul (2017), and The Father (2020).

In 1995, she toured the United States in the National Theatre production of Shakespeare's Richard III starring Ian McKellen.

[3] She then starred as Bruce Willis' wife in the blockbuster The Sixth Sense (1999),[4] a film she would later parody during her brief appearance in the British sitcom Spaced.

[citation needed] In 2000, Williams wrote the short story "The Significance of Hair" for BBC Radio, and read it on the air.

[citation needed] In Hanna (2011), Williams played Rachel, a bohemian mother travelling across North Africa and Europe, who comes into contact with the eponymous teen assassin, who is on the run.

The film starred Saoirse Ronan, Eric Bana and Cate Blanchett, and was a critical and sleeper hit.

[4] In 2017, Williams began appearing in the Starz science-fiction series Counterpart, playing Emily, the wife of lead character Howard Silk.