Sydney Sweeney plays the boxer Christy Martin in David Michôd’s biopic Christy, which she brought to the BFI London Film Festival for its UK premiere.
Sydney Sweeney presented Christy, David Michôd’s biopic of the boxer Christy Martin, at the Royal Festival Hall on the South Bank on Friday 17 October 2025. Ben Foster joined her for the BFI London Film Festival gala.
Sweeney was born in Spokane, Washington, in 1997 and grew up in the Idaho panhandle. She talked her parents into letting her act with a five-year business plan, and moved to Los Angeles at thirteen.
Euphoria and the first season of The White Lotus each brought her an Emmy nomination.
Christy Martin became the best-known female boxer in America in the 1990s. In 2010 she survived an attempted murder by her husband and former coach, James Martin, whom Foster plays. Sweeney also produced the film.
The London gala was its UK premiere, after a world premiere at Toronto on 5 September. Black Bear, its distributor in Britain and Ireland, released it in America on 7 November.
Merritt Wever and Katy O’Brian complete the principal cast.