The narrative-style documentary feature follows a family of African elephants as they cross 300 km of hot desert to reach the wetlands of the flooded Okavengo Delta.
Production will begin in the dry season and will follow the entire annual migration.
Wildlife veterans Richard Jones, Mike Holding and Martyn Colbeck are serving as DoPs.
Elephants will be produced by Madeleine Westwood and Richard Waterstone for Wales-based Waterstone Westwood.
Waterstone said: 'These amazing animals cross a vast distance of heat and sand to reach the paradise of the Okavango Delta, truly one of the natural wonders of the world. As the first natural history feature film production company in Wales, we're thrilled to be able to tell such a remarkable story.'
ContentFilm's Jamie Carmichael said: 'This is a personal mission for me. I have family involved in conservation in Kenya and across Africa, and I immediately knew that this story was something very special -. The story has the 'tingle factor' and distributors have agreed.'