Julia Fox is an Italian-American actress and singer. Her debut performance was in the 2019 film Uncut Gems, for which she was nominated for the Breakthrough Actor Award at the 2019 Gotham Awards. She is also known for her eccentric style and online presence.

Uncut Gems is a 2019 American crime thriller film directed by Josh and Benny Safdie, who co-wrote the screenplay with Ronald Bronstein. It stars Adam Sandler, LaKeith Stanfield, Julia Fox, Kevin Garnett, Idina Menzel, and Eric Bogosian. The film tells the story of Howard Ratner (Sandler), a Jewish-American jeweler and gambling addict in New York City's Diamond District, who must retrieve an expensive gem he purchased in order to pay off his debts. Filming took place from September to November 2018. The original score was composed by Daniel Lopatin. Uncut Gems is the last film directed by the Safdie brothers before dissolving their partnership in 2024.