Actress Lucy Liu is determined to break cultural barriers and make Asian stars prominent in America, because she spent her childhood feeling misrepresented in her homeland.

The 37-year-old Chinese-American praises the US for its diversity, but insists more needs to be done to make popular culture truly reflect Asian ethnicity.

She says, "Asians are considered an invisible race. America has always been a melting pot. It's a significant part of what it is to be American. But there wasn't a reflection of other ethnicities and cultures in TV and film when I was growing up and I think that has an impact.

"It's daunting to go into the arts. But instead of being intimidated, I found it very challenging. My intention was to plant the seed of change."