Fathom (2021) is a Documentary film that follows two biologists set out on an undertaking as colossal as their subjects—deciphering the complex communication of whales. Dr. Michelle Fournet and Dr. Ellen Garland journey to opposite hemispheres to uncover a culture eons older than our own. Currently, you can watch Fathom on Apple TV, Apple TV Amazon Channel. Streaming availability may vary by country and platform over time. It has a user rating of 5.6 out of 10 from 21 votes. Fans of documentary movies may also want to explore similar titles below.