Movies Like Sea of Hope: America's Underwater Treasures

If you liked Sea of Hope: America's Underwater Treasures (2017), a documentary movie directed by Robert Nixon, here are 20 movies with a similar feel, based on TMDB's recommendations. Each one links to its cast, trailer and where it's streaming.

1
Deepsea Challenge 3D (2014)
★ 6.6/10Also documentary
Described as being a film about determination, danger and the ocean’s greatest depths, James Cameron's "Deepsea Challenge 3D" tells the story of Cameron’s journey to fulfill his boyhood dream of becoming an explorer…
2
Shark Whisperer (2025)
★ 6.7/10Also documentary
Marine conservationist and social media activist Ocean Ramsey fearlessly swims with sharks in this documentary about her risky mission to protect them.
3
Deep Blue (2003)
★ 6.9/10Also documentary
Deep Blue is a major documentary feature film shot by the BBC Natural History Unit. An epic cinematic rollercoaster ride for all ages, Deep Blue uses amazing footage to tell us the story of our oceans and the life they…
4
Ocean with David Attenborough (2025)
★ 8.1/10Also documentary
David Attenborough takes viewers on a breathtaking journey showing there is nowhere more vital for our survival, more full of life, wonder, or surprise, than the ocean. Through spectacular sequences featuring coral…
5
My Octopus Teacher (2020)
★ 7.9/10Also documentary
After years of swimming every day in the freezing ocean at the tip of Africa, Craig Foster meets an unlikely teacher: a young octopus who displays remarkable curiosity. Visiting her den and tracking her movements for…
6
The Deepest Breath (2023)
★ 7.6/10Also documentary
Bonded by their love of freediving, a record-setting champion and a heroic safety diver try to make history with a remarkable feat, ready to risk it all.
7
Ghosts of the Abyss (2003)
★ 6.8/10Also documentary
With a team of the world's foremost historic and marine experts as well as friend Bill Paxton, James Cameron embarks on an unscripted adventure back to the wreck of the Titanic where nearly 1,500 souls lost their lives…
8
Puff: Wonders of the Reef (2021)
★ 7.7/10Also documentary
A baby pufferfish travels through a wondrous microworld full of fantastical creatures as he searches for a home on the Great Barrier Reef.
9
Deep Sea 3D (2006)
★ 6.6/10Also documentary
Sea life in a whole new way. Deep Sea 3D, an underwater adventure from the filmmakers behind the successful IMAX® 3D film Into the Deep, transports audiences deep below the ocean surface. Through the magic of IMAX®…
10
Seaspiracy (2021)
★ 7.8/10Also documentary
Passionate about ocean life, a filmmaker sets out to document the harm that humans do to marine species — and uncovers an alarming global conspiracy.
11
Earth (2007)
★ 7.7/10Also documentary
An epic story of adventure, starring some of the most magnificent and courageous creatures alive, awaits you in EARTH. Disneynature brings you a remarkable story of three animal families on a journey across our planet…
12
Come See Me in the Good Light (2025)
★ 7.1/10Also documentary
In an intimate and joyful story of love in the face of loss, celebrated poets Andrea Gibson and Megan Falley find strength—and unexpected hilarity—in what might be their final year together.
13
S4: The Bob Lazar Story (2026)
★ 8.4/10Also documentary
Over 35 years after Bob Lazar's revelations, this documentary exposes secrets of a facility the government still denies. Featuring Lazar's testimony, recreations, and new evidence, it reopens a case that continues to…
14
Naqoyqatsi (2002)
★ 6.2/10Also documentary
A visual montage portrait of our contemporary world dominated by globalized technology and violence.
15
Powaqqatsi (1988)
★ 7.2/10Also documentary
An exploration of technologically developing nations and the effect the transition to Western-style modernization has had on them.
16
Aliens of the Deep (2005)
★ 6.1/10Also documentary
James Cameron teams up with NASA scientists to explore the Mid-Ocean Ridge, a submerged chain of mountains that band the Earth and are home to some of the planet's most unique life forms.
17
Maidentrip (2014)
★ 7.1/10Also documentary
14-year-old Laura Dekker sets out on a two-year voyage in pursuit of her dream to become the youngest person ever to sail around the world alone.
18
Chasing Coral (2017)
★ 7.7/10Also documentary
Coral reefs are the nursery for all life in the oceans, a remarkable ecosystem that sustains us. Yet with carbon emissions warming the seas, a phenomenon called "coral bleaching" -- a sign of mass coral death -- has…
19
A Plastic Ocean (2016)
★ 7.5/10Also documentary
A documentary focused on plastic pollution in the world's oceans.
20
The Curious Birth of Benjamin Button (2009)
★ 7/10Also documentary
A documentary about the making of David Fincher's 2008 film THE CURIOUS CASE OF BENJAMIN BUTTON. Virtually every element in the evolution of the Fincher's film is documented here, from the project's attachment to…