Born in Dartford (England) in 1961.Her early short films included ‘Milk’ (1998), ‘Dog’ (2001), and ‘Wasp’ for which she won an Academy Award in 2005. Her first feature film ‘Red Road’ (2006) and second film ‘Fish Tank’ (2009) competed at the Cannes Festival and both won the Jury Prize before being awarded at the BAFTA’s. In 2011 she completed shooting the adaptation of Emily Brontë’s ‘Wuthering Heights’, which premiered at the Venice Mostra and competed at Seminci. That same year, she was appointed Officer of the Order of the British Empire for services to the film industry. She returned to Cannes in 2016 to present her film ‘American Honey’ in competition, where she won her third Jury Prize. Arnold has also directed several episodes of the series ‘Transparent’ and ‘I Love Dick’, as well the second season of the series ‘Big Little Lies’. In 2021 she competed in Cannes with ‘Cow’ and in 2024 she returned to the French competition with ‘Bird’.