Screen star David Oyelowo has criticised TV bosses for ignoring the real picture in British history by failing to cast black actors in period dramas.

The 38-year-old former Spooks actor left Britain in 2007 to pursue his career in the US, landing a number of big-screen roles including as Martin Luther King in the new Hollywood film Selma.

He said the dearth of roles in Britain for black actors had left him and his contemporaries frustrated.

"There's a string of black British actors passing through where I live now in LA. We don't have Downton Abbey, or Call The Midwife, or Peaky Blinders, or the 50th iteration of Pride And Prejudice," he said.

"We're not in those. And it's frustrating, because it doesn't have to be that way. I shouldn't have to feel like I have to move to America to have a notable career."

Oyelowo, who was a leading name in the Royal Shakespeare Company in his early 20s, said: "We make period dramas here (in Britain), but there are almost never black people in them, even though we've been on these shores for hundreds of years.

"I remember taking a historical drama with a black figure at its centre to a British executive with greenlight power, and what they said was that if it's not Jane Austen or Dickens, the audience don't understand.

"And I thought, 'Okay, you are stopping people having a context for the country they live in and you are marginalising me. I can't live with that. So I've got to get out'."

Oyelowo said that there were "people as talented as me if not more so, who chose to stay and aren't getting the opportunities worthy of them. And I can't say the same of my white peers".

His comments come after The Imitation Game star Benedict Cumberbatch highlighted the lack of diversity on British screens.

Cumberbatch's remarks were overshadowed by the Sherlock actor's use of the term "coloured", for which he later apologised.

Oyelowo said: "The difference between myself and Benedict and Eddie (Redmayne) is they can choose to live here and still have a Hollywood career. Because though they can do American movies, their bread and butter in Britain is period films.

"But had I stayed here, I wouldn't be in Selma. That's just a fact."

The father-of-four added: "I feel like if I came back, considering what I look like and the stories I want to tell, that may still be a challenge for the industry.

"Who knows, I may have chosen to live in LA anyway. I love it, my kids love it, I love the weather. But as an actor, I felt like I had no choice. And I'd love to feel like I had the choice."

Oyelowo said that Britain still had a "fixation with class", adding: "Everything is about class in Britain. Class is something you're born into, and you can't earn your way out."

The actor, who returned to London at 13 after spending some of his childhood in Nigeria, said that in secondary school he was told by fellow pupils that he was "not black".

"The fact that I spoke the way I do, and wasn't playing truant, and was a good student, I had them tell me, 'You're not black'. It was because of this notion they had, through feeling marginalised, that blackness became a self-fulfilling prophecy of negative traits.

"Problems exist in both countries, but in America there's a more vibrant, open conversation about race, because the legacy of slavery is so undeniable. In Britain, race is fenced off."

Selma has been nominated for just two Oscars and was overlooked by Bafta, despite receiving rave critical reviews and being a hit with audiences in the US.

But Oyelowo shrugged off the lack of nominations, saying: "We made a film that is not your typical biopic, that doesn't feel like, 'Oh, here come the strings'. We made the movie we wanted to see, not what we thought the Academy would like."

Last year, stars including Idris Elba and Lenny Henry told TV bosses that they were "dismayed" at the poor numbers of people from ethnic minority backgrounds working in the industry.

Figures including Broadchurch writer Chris Chibnall, comic Harry Hill and actor David Harewood signed an open letter calling for "a ring-fenced pot of money" for black, Asian and minority ethnic programmes.

The letter, which was sent to BBC director general Tony Hall, ITV chief executive Adam Crozier, and the bosses of BSkyB, Channel 4 and Channel 5, was also signed by film-maker Richard Curtis and Baroness Doreen Lawrence, mother of murdered teenager Stephen Lawrence.

Mr Hall had announced a plan to set up a £2.1 million "diversity creative talent fund" to help fast-track shows by ethnic minority talent on to the screen, but the signatories to the letter said such plans were welcome but "not sufficiently radical to effect significant change".

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