Nicole Kidman could be left unable to have any more children after playing a didgeridoo on German television.

The Oscar-winning actress appeared on German TV blowing into the traditional Australian instrument while prompting her big budget box office flop, Australia, last week.

According to Aborigine folklore, women who play the didgeridoo could become infertile.

Aborigine language teacher Richard Green warned: “People are going to see Nicole playing it and think it’s all right. But it will mean she has no more children. It is not meant to be played by women as it will make them barren.”