O Sangue is the Portuguese filmmaker Pedro Costa's first feature film. Released in 1989, in black and white, the film depicts the impoverished life of two brothers, Vicente and Nino, after their father dies. With the help of Clara, Vicente's childhood friend, the trio struggle to survive, caught between their uncle's attempt to abduct/adopt Nino, and mobsters looking to collect the debts Vincente's father left behind. The film was selected as the Portuguese entry for the Best Foreign Language Film at the 64th Academy Awards, but was not accepted as a nominee.