He could be relaxing with family and friends during the Christmas break but talented filmmaker Taika Waititi has taken the time to roll up his sleeves and go on the bone marrow registry.
As an ambassador for the Dream Chaser Foundation - A Chace Topperwien Charity, which helps the families of cancer-stricken children, Waititi has heeded the call for more Maori and Pacific Island people to join the registry.
Waititi, whose hit Kiwi movies Boy and Hunt for the Wilderpeople have catapulted him to international fame, donated a bag of blood today at the New Zealand Blood Service in Auckland, which is all it takes to register to become a bone marrow donor.
Successful bone marrow transplants in cancer patients can help save lives but of 19 million internationally registered potential donors, only about 8000 are Maori or Pacific Islanders.
Ryan Topperwien, who started the Dream Chaser charity with his wife Keri after their 3-year-old son Chace could not find a bone marrow match and died of leukaemia in June 2012, said having Waititi sign up to the registry was huge.