[3] Forrest has written four novels: Namedropper (1998), Thin Skin (2002), Cherries in the Snow (2005) and Royals, which was released in the UK on 31 October 2019.

The book features contributions from many well-known women, including Helen Oyeyemi, Marian Keyes and Sarah Jones.

[4][5] The memoir was announced as a feature film adaptation to be written by Forrest and directed by Francesca Gregorini, with Emma Watson in the lead role.

[6] In August 2022, Forrest published a second memoir, Busy Being Free, concerning her divorce and return to living in London as a single parent.

[7] A screenplay by Forrest about musician Jeff Buckley, Becoming Music, was bought by Brad Pitt's production company Plan B Entertainment in September 2000.