Here’s a friendly reminder that only 30% of planet Earth is made up of land. And there’s a significant portion of the remaining 70%, otherwise known as the deep sea, that has yet to be touched; we’ve explored more of our moon than the bottom of our oceans. Director Eleanor Mortimer’s feature debut How Deep Is Your Love explores this eye-opening notion, for all you budding biologists or just plain inquisitive folks out there. There have been a plethora of acclaimed documentaries about the environment, and ever since the silent era people have made mesmerizing films about marine life, from Jean Painlevé to Jacques Cousteau.