Steve McQueen's 12 Years a Slave has won the Oscar for Best Picture.
Oprah Winfrey tweeted after Lupita Nyong'o picked up the Best Supporting Actress Oscar:
Lupita Nyong'o has been awarded the Best Supporting Actress Oscar for her role in 12 Years a Slave.
Nyong'o ended her acceptance speech by saying, "No matter where you are from, your dreams are valid".
Oscar-nominated director of 12 Years a Slave Steve McQueen, leading actor hopeful Chiwetel Ejiofor and actress Adepero Oduye have made their way down the red carpet.
David Cameron revealed the Golden Globe-winning drama 12 Years a Slave is "on my list" of films to watch.
The Prime Minister expressed his desire to see the movie, directed by Steve McQueen, during an appearance before the Commons Liaison Committee.
Home Affairs Select Committee chairman Keith Vaz said that while the film dealt with the US in 1843, there were 880,000 people living in conditions of slavery in modern-day Europe.
Mr Cameron answered, "It is genuinely shocking. Parliament, the House of Commons specifically, has done quite a good job of raising the profile of this issue and opening people's eyes to the problem of modern-day slavery."
The Prime Minister has congratulated those behind the film 12 Years a Slave, directed by Brit Steve McQueen, which won best drama film at the Golden Globes:
In a bittersweet night for the British film industry, Steve McQueen's 12 Years a Slave took home the best drama motion picture award at the Golden Globes.
London-born McQueen, who has won awards at Cannes, the Baftas and even the Turner Prize for his video artwork, thanked Brad Pitt because "without you this movie never would have got made".