Movie · 2025 · Animation, Fantasy, Action · 1h 32m · R · English
Curator score: 1.6/10 (32.6K ratings)
Overview
When human sailors are attacked by mysterious creatures of the deep, only one person can stop the war between land and sea: the Witcher, Geralt of Rivia.
Ratings
Curator score: 1.6/10
IMDb: 6.1/10
Letterboxd: 2.91/5
Rotten Tomatoes: 58%
Metacritic: 54
TMDB: 6.8/10
Director
Kang Hei Chul
Production
Studio Mir, Hivemind, Platige Films, Little Schmidt Productions
Cast
Doug Cockle, Joey Batey, Christina Wren, Emily Carey, Camrus Johnson, Simon Templeman, Mallory Jansen, Anya Chalotra, Ray Chase, Cynthia Kaye McWilliams, Ramon Tikaram, Kari Wahlgren, Stephen Fu, George Ackles, Brian George, Maury Sterling, Darin De Paul, Greg Vinciguerra, Valerie Rose Lohman, Brittany Ishibashi
Where to watch
Netflix, Netflix Standard with Ads
Curator Review
Verdict
A serviceable fantasy-adventure with strong animation, brisk action, and enough monster-hunting charm to keep Witcher fans engaged, but the story is thin, familiar, and often feels more like a polished side quest than a must-see chapter.
Best for
Witcher fans who mainly want Geralt back in action
Viewers who prioritize animated fight choreography over deep plotting
Fantasy audiences in the mood for a sea-creature/mermaid conflict
Fans of lighter, pulpy monster-hunting adventures
Skip if
You want the franchise at its most ambitious or emotionally rich
You’re tired of generic fantasy politics and familiar romance beats
You dislike adaptations that lean childish despite bloody violence
You’re not already invested in The Witcher universe
Overview
Sirens of the Deep is the kind of animated fantasy that knows exactly how to move, even when the story itself feels familiar. The action is lively, the underwater setting gives it a clean visual hook, and Geralt’s return in the original voice is a genuine draw for fans who missed that specific version of the character.
Worth noting
What holds it back is the sense that the movie is content to remix better-known fairy-tale and fantasy ideas rather than build something surprising. The central conflict between land and sea has enough momentum to stay watchable, but the emotional beats and romance are predictable, and the tone can wobble between grim violence and almost kiddie-level whimsy.
Bottom line
As a standalone fantasy adventure, it’s fine. As a Witcher story, it feels more like a competent detour than an essential entry. If you’re already on board for the world, the animation and action make it easy enough to enjoy; if you’re hoping for something sharper or more original, this one may leave you wanting more.
Top Letterboxd reviews
Kit Lazer (2.5★) · 357 likes
I love The Witcher and I’ll watch anything to do with it gleefully. I just wish more of the adaptations were good. Nightmare of the Wolf was awesome. This is a little too Scooby Doo and Little Mermaid for me. Super cool they got the OG voice actor, though.
TheFreshBeef (3★) · 236 likes
knew the mermaid princess and the human prince would be together forever the moment she said:
"I liked you better when we only fucked instead of talked"
L3w1s (2.5★) · 142 likes
THEY GAVE GERALT A BUSH
carter.mov (3★) · 126 likes
Halfway into the movie, Geralt makes a “Lover? I hardly know her!” joke.
That was the movie’s peak; take from that what you will.
Mister Cap (3★) · 125 likes
ENGLISH VERSION below
„The Witcher: Sirens of the Deep“ – Geralt, Gesang und generische Fantasy
Netflix bleibt hartnäckig dabei, das „The Witcher“-Franchise am Leben zu halten – mit mal mehr, mal weniger Erfolg. Nach der chaotischen Prequel-Serie „Blood Origin“ und dem soliden „Nightmare of the Wolf“ gibt’s nun mit „Sirens of the Deep“ wieder einen Animationsfilm. Diesmal geht’s ans Meer, wo eine Mordserie für Unruhe sorgt und Geralt die Wogen glätten muss – im wahrsten Sinne des Wortes.
Klingt spannend?… more