Watch: Moving film about parents' decision to give baby away under Whangai, a traditional Maori practice

Welcome to the full-length version of Sharing the Love, the debut documentary by Rochelle Umaga.

It's about Whāngai, the Māori custom where a child is brought up by someone other than their birth parents – usually another relative.

The powerful and thought-provoking film is about Riann and Tumatauenga Umaga-Marshall, who choose to whangai adopt their fourth child to Riann's brother and his wife, who have been trying unsuccessfully for a baby for 13 years.

It follows them during the latter stages of pregnancy and in the aftermath of the birth. Will they get cold feet? Will they be able to go through with the handover?

Sharing the Love was made with funding from New Zealand on Air.