XXY is a 2007 Argentine-Spanish-French drama film written and directed by Lucía Puenzo. Starring Ricardo Darín, Valeria Bertuccelli, Inés Efron, and Martín Piroyansky, the film tells the story of a 15-year-old intersex person, the way her family copes with her condition and the ultimate decision that she must eventually make as she struggles to define her own gender identity amongst a society that expects certain behaviors.
XXY received positive reviews from critics, winning the Critics' Week grand prize at the 2007 Cannes film festival, as well as the ACID/CCAS Support Award. It was nominated for eight awards at the 2008 Argentine Film Critics Association Awards, winning three of them including Best Film, and was nominated or won awards at a number of other foreign film festivals. It was chosen to close the 2008 Melbourne Queer Film Festival and had a short run theatrical release before being released onto DVD. The film also won the Goya Award for Best Spanish Language Foreign Film and the Golden Crow Pheasant at the International Film Festival of Kerala.
The film's title appears to be a reference to Klinefelter syndrome, a condition in which individuals have an extra X sex chromosome. Those affected with Klinefelter syndrome often do not show highly-visible symptoms and are not aware of their condition, unless diagnosed later in life (usually due to infertility). It can be ascertained throughout the film that the main character has typical female sexual characteristics, with the exception of an enlarged clitoris, although this is coupled with an apparent hormonal regimentation.
(Summary from Wikipedia)