In 1955 Hayward wrote the script for Song of the Wanganui, a journey up the Whanganui River showing scenes from its past. The Putiki Maori Choir sang in it.
A more famous film was To Love a Maori, New Zealand's first colour feature film in 1972. Perhaps her best-known screen role would be the part of Billy T James' bossy mother in his 1990 sitcom series.
But Hayward was also a painter and author, and she was faithful to her Maori background. She is said to have turned down a knighthood in protest over land rights, and joined in a protest over a Wairarapa land sale. In later life she became a member of the Maori Women's Welfare League.
She did accept becoming a Member of the New Zealand Order of Merit (MNZM) in 2006, for services to film.
On Monday the Maori Party paid tribute to the pioneering film maker. Co-leader Tariana Turia said she showed the courage and tenacity of Maori to stand up and be counted.
"Hayward Films presented Maori issues in a positive frame in a time when few other film makers were so inclined. It would be fascinating to see the collaboration that Ramai and Rudall brought to a documentary called The World is Turning Towards the Coloured People, which I believe never made it to the box office."