Greenwood was born on the Indian Ocean near the shores of South Africa, as a son of a Colonel of the British Army and a Flemish painter.

His parents took him to explore the world and he got to grow up in places such as Johannesburg, Cairo and Moscow. He committed himself to be a genuine storyteller and a fervent observer of mankind.

Greenwood has made films all over the world, from Africa, across Europe, to the USA and Japan.