Erin Brockovich first made headlines in 1993 when she began and won a lawsuit against an American energy giant, after claiming their actions had contaminated drinking water in a Californian town.
A film followed and it turned the activist into a household name.
Currently in Christchurch, Erin Brockovich is lending quake-affected residents her voice in their ongoing claims.
She spoke to Duncan Garner.
Watch the video for the full interview.