The documentary takes viewers on a journey into the world of blue whales, a species recovering from the brink of extinction “Blue Whales: Return of the Giants” on display at the American Museum of Natural History.

Watch the trailer:

Narrated by the English actor Andy Serkisthe movie follows two scientific missions. The first is high-risk for finding an extinct population of blue whales, which has not been seen in 50 years.

The second follows her Diane Gedronthe “mother of blue whales” in the Gulf of California, Mexico, where she and her team are exploring the important role marine mammals play in ocean health.

Director and producer Hugh Pearson’s passion for blue whaleswhich touches on the obsession that drove him to create this hopeful story.

As he explains, the numbers of blue whales are slowly increasing and the global population is estimated to be around 15,000, a small fraction of their historical numbers. In particular, it states that an increase is recorded every year in places such as off the Pacific coast of Mexico and California.

“And now it’s possible for people to see blue whales on sighting trips from shore, which is fantastic,” he notes.

“Everyone assumes that because blue whales are the largest mammals on the planet, we should know a lot about the species, but in reality, that’s not the case,” says the documentary’s narrator.

“Learning what scientists are trying to do, understanding their behaviors, was a real education for me. We need to learn more about such creatures because they inspire us to have hope. The film is a wonderful marriage of storytelling, information and entertainment” also states Andy Serkis.