Tuiasau Uelese Petaia, who plays Maea, has urged matai to speak for "sisters" against the big problem of domestic violence.
RNZ reports Mr Petaia, himself a matai, is hoping for change.
He said some Samoan men depended too much on their fists to rule their families at the detriment of wives, daughters, sons and extended family.
Mr Petaia addressed the crowds that attended this week's gala premiere of the movie in Wellington, an audience that included Samoa's Head of State Tuiatua Tupua Tamasese Efi and dignitaries of the Samoan community.