About Metropolis
Dive into the making of our multi-award winning short documentary
Metropolis – A Day in Reef City is a short film by Luca Keller that takes you into the everyday life of a coral reef.
Shot on a single reef in Indonesia, this film is the result of hundreds of hours spent underwater, getting to know every coral, fish, and rock. What might seem repetitive to others became a source of endless discovery. Small moments of beauty, survival, and connection.
The reef became a city. Its tiny residents, its stories. Metropolis captures these stories with intimacy and care, revealing the rhythm of life beneath the waves in just one day.
It’s a quiet reminder of how life thrives when everything works together, and why these underwater worlds are worth protecting.
About the film
"Metropolis - A Day in Reef City," a mesmerizing short film by Luca Keller that takes you into the heart of a coral reef's daily life, showcasing intimate and illuminating wildlife scenes.
Nestled in the heart of the Indonesian archipelago, a special reef teeming with life, was the muse and inspiration for the film. This reef became the canvas for storytelling, a place where Luca spent hundreds of hours diving, becoming intimately familiar with every creature, every rock and every coral. It's here, that the concept of "Metropolis" was born—a tribute to the mesmerizing complexity and delicate balance of reef ecosystems.
One might think it’s boring to dive the same dive site over and over again, but Luca discovered a world where even the smallest detail tells stories of survival, cooperation, and the beauty of existence. Each dive unraveled new mysteries, revealing vibrant life stories from within this aquatic metropolis. This profound connection and deep understanding of the reef’s inhabitants became the heartbeat of the documentary, fueling the passion that Luca poured into every frame.
“Metropolis” is a window into an unseen world and into the lives of the reef’s residents. The documentary tells about the intricate web of relationships that sustains this underwater society. The camera lens, guided by Luca’s visionary eye, captures the most intimate moments of this marine metropolis. The viewer is not just an observer but is invited to become a part of this 24-hour cycle in the reef, experiencing the ebb and flow of life beneath the waves.
“Metropolis” is an homage to the resilience and diversity of life. It portrays the beauty and complexity of underwater cities and teaches the art of living together in harmony, just like the inhabitants of the reef.
How we did it
“Metropolis” has been shot, edited and brought to life by Luca Keller, who has put his passion and love for underwater film making into this piece.
The magical moments throughout the film have been captured by him in the tropical waters of the Maldives and Timor Leste, but mainly in one special reef in Indonesian waters.
The film represents a journey through a year’s worth of exploration across various reef systems, selecting sequences that highlight not just the ecosystem, but the extraordinary behaviors and unique individuality of marine inhabitants.
The Idea
“Metropolis – A Day in Reef City” was born out of a fascination and respect for the rich biodiversity of tropical reef systems. Luca envisioned a short film that would celebrate the beauty and complexity of reef ecosystems.
Production
Armed with an intimate knowledge of local sites and the support of a passionate community of marine life enthusiasts, the team embarked on a quest to locate and document the daily lives of tropical reef creatures. The filming, spread over several months, happened both during the daylight and the mysterious world of the night reef. Accumulating more than 300 hours of footage, Luca captured unseen behaviors and moments, showcasing his dedication and bringing to life the untold stories of the reef.
Creating the stunning visuals required advanced equipment. Luca used a high-end Sony cinema camera, protected by a sturdy Marelux aluminum housing and various specialized lights to reveal the vibrant colors and details of the underwater world. He also used a specially made rig designed for close-up filming, which helped creating intimate shots of even the tiniest inhabitants of Metropolis.
Post-Production
Once the raw beauty of the reef was captured, Julia took charge of the storytelling. Her task was to weave the selected footage into a narrative, crafting a script that would resonate with audiences and honor the spirit of the reef. In the post-production stage, Luca carefully edited the videos and created a sound experience that made viewers feel like they were under the sea. The professional voice-over artist, Nick Radcliffe, narrated the film, adding emotion and depth to the story and leading the audience through a day in Reef City.
Photo credits
Zoe Slack @zoegetswet
Awards
- IWFF47 – International Wildlife Film Festival
Animal Behavior
Official Selection 🌟 - Nature Without Borders 2024
Ocean Life Documentaries
Best Of Show Award Winner🏆 - Vaasa International Wildlife Film Festival
Special Award – Newcomer
1st Place Winner🏆 - International Underwater Film Festival Belgrade 2023
Underwater Documentary, Independent Category
2nd Place Winner🏆 - International Motion Picture Awards 2024
Best Short Film on Nature & Wildlife
Winner 🏆 - Wildlife Vaasa Festival-International Nature Film Festival
Underwater Films
Finalist 🌟 - Lookout Wild Film Festival 2024
Documentary Film
Honorable Mention 🏅 - RED MOVIE AWARDS 2023
Best Short Documentary
Honorable Mention 🏅
- Rome Prisma Awards 2023
Best Short-Doc
Nominee 🏅 - INDO FRENCH INTERNATIONAL FILM FESTIVAL 2023
Best Documentary Short Film
Winner🏆 - Silver Wings International Film Festival 2023
Film on Nature / Environment / Wildlife
Winner/Outstanding Achievement Award 🏆 - Sundarban International Film Festival – 9th Season
Film on Nature / Environment / Wildlife
Winner 🏆 - NEUM Underwater Film Festival
Underwater Films
Quarter Finalist🏅 - Wild Oceans FilmFest
Short Documentary
Finalist🏅
- Blue Bird Film Festival 2023
Film on Nature, Environment and Wildlife
Winner🏆 - UFFS Universal Film Festival Samothraki
Wildlife (Animals and Environment)
Winner🏆 - Direct Monthly Online Film Festival
Documentary Films
Jury Award, December 2023 🏆 - Barcelona Indie Filmmakers Festival (BARCIFF) 2024
Short Documentaries
Official Selection 🌟 - Rome Outkast Independent Film Award 2024
Best Documentary
Official Selection 🌟 - Better Earth International Film Festival
Film on Nature, Environment and Wildlife
Winner🏆
- Barcelona Indie Awards
Best Short Documentary
Finalist 🏅 - SEAiff 2024
Nominated: 🏅
Best Short Documentary 2024
Best Producer – Short Film
Best Director – Short Film
Best Cinematography – Short Film
Winner🏆:
Best Sound Design – Short Film
Best Score mixing – Short Film
Best Original Score – Short Film





















