Gwyneth Paltrow wants her children to have perfect English accents.

The 'Iron Man 3' star, who has daughter Apple, nine, and son Moses, seven, with Coldplay singer Chris Martin, is such a huge fan of period drama 'Downton Abbey' she is determined for her kids to adopt cut-glass posh accents like the show's Crawley family.

A source told the Daily Star newspaper: ''Gwyn adores 'Downton Abbey' and is forever saying how she wishes her kids spoke as beautifully. At the moment, the kids use slang from the US and the UK and it drives her nuts.''

The 41-year-old beauty previously claimed her children have developed ''strange'' transatlantic accents because they split their time between their mother's native United States and their father's native United Kingdom.

She said: ''Weirdly my son is half-Brooklyn [New York] and half-English - he's got a really strange accent. And my daughter is completely American with me at home or in America, but completely British at school. It's bizarre. If she's home with a friend over, she's completely British when she talks to her friend and then she talks to me in an American accent. I want a video of it but I don't want to embarrass her. It's completely hilarious.''

Earlier this year, Gwyneth was tipped to guest star in the hit British show, which has recently featured cameos from top US actors Paul Giamatti and Shirley Maclaine.