THE OC star Mischa Barton has hit out at critics who claim she is too young to write an autobiography, insisting her stories are fascinating.

The 19-year-old actress has already spent 10 years in the movie industry and promises her tales from the sets of blockbusters The Sixth Sense and Notting Hill will make brilliant reading.

She storms, "I was starring opposite Julia Roberts at the age of 12, that's already a big enough story."