Big winner ... Alfonso Cuarón.
Alfonso Cuarón has won the best director Oscar for Gravity at the 86th Academy Awards, defeating a field that included 12 Years a Slave's Steve McQueen, Nebraska's Alexander Payne and Martin Scorsese for The Wolf of Wall Street. In doing so, Cuarón becomes the first Mexican-born director to win the award.
With a back catalogue including Mexican road movie Y Tu Mama Tambien, dystopian near-future parable Children of Men and Harry Potter and the Prisoner of Azkaban, Cuarón has been nominated for Oscars before, but not in this category. Gravity, the space-walk thriller starring Sandra Bullock as a scientist stranded in Earth's orbit after her craft is crippled by debris, has proved a huge box-office hit, as well as a showcase for cutting-edge visual effects. It has already won Cuarón major best director awards at the Golden Globes and Baftas, and won the Bafta for best British film.
The Academy Awards are taking place at the Dolby theatre in Los Angeles, and are being hosted by Ellen DeGeneres.