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Movie Review – Isla Monstro (2024)

June 26, 2026 by EJ Moreno

Isla Monstro, 2024.

Directed & Animated by Steven Shea.
Starring James Schrader, Juliana Harkavy, John DiMaggio, Harry Lennix, Harland Williams, James Marsters, Spencer Grammer, Barry Bostwick, Chris Sabat, Maurice LaMarche, Will Friedle, Dana Snyder, Dia Frampton, Andre Gowez, Kristina Klebe, J LaRose, LeeAnna Vamp, Gigi Edgley

SYNOPSIS:

When loser Duke, who has screwed up every hair-brained scheme he’s ever come up with, accidentally falls off a cruise ship and wakes up on a mysteriously abandoned, top secret government island, he discovers that it’s overrun with mutants and monsters from a failed 1980s DARPA “super soldier” project to stop the 2nd Cold War. He soon comes up with the incredible idea of turning the island into a world-class getaway resort, utilizing the creatures as its staff, much to the dismay of the United States government.

Independent animation always has an uphill battle. Without the polish or resources of the major studios, these films have to win audiences over with personality, creativity, and heart. Isla Monstro, director Steven Shea’s monster-filled animated comedy, understands that better than most. It’s an undeniably rough-around-the-edges effort, but one bursting with enough charm and affection for classic movie monsters to make its imperfections easier to forgive.

Set in a world where iconic creature features collide with self-aware comedy, Isla Monstro embraces its B-movie inspirations while layering in plenty of meta humor. It’s the kind of film that’s less interested in reinventing the monster genre than celebrating it, lovingly poking fun at familiar tropes while still telling a surprisingly engaging story of its own. Even when the film stumbles, there’s an earnest enthusiasm that keeps it shambling forward.

The biggest strength of Isla Monstro is its story. Shea is obviously going for a love letter to generations of creature features. There’s everything from Universal horror icons to giant monster movies, all of which fit well through his lens. The meta commentary never overwhelms the narrative, instead complementing a genuinely entertaining adventure. It’s playful and at times a little smug, but that’s a balance many spoofs struggle to achieve.

Watching Duke, a new level of movie slacker the likes of which we haven’t seen, have this madness unfurl around him ends up being shockingly easy. His character, voiced by James Schrader, could’ve easily been grating, but Shea’s writing and the performance balance things out just enough.

The voice cast also elevates the material considerably. Featuring seasoned performers who fully commit to the film’s heightened world, the performances add warmth and personality throughout. Even when the script leans into sillier territory, the cast grounds the characters enough that you’re invested in where the story goes next.

The animation will likely be the film’s most divisive element. At times, its limited style evokes the wonderfully scrappy energy of mid-2000s Adult Swim animation, giving Isla Monstro an appealing DIY aesthetic that oddly suits its monster movie sensibilities.

Unfortunately, there are also moments where the production limitations become impossible to ignore. Character movement can feel stiff, some sequences lack visual fluidity, and a handful of rough patches pull you out of the experience. The charm carries it surprisingly far, but it can’t completely mask the budgetary constraints.

Comedy is similarly hit-or-miss. Isla Monstro throws jokes at the audience at a relentless pace, which means misses are inevitable. Some punchlines feel a little juvenile, while others simply don’t land with the same effectiveness as the film’s sharper bits. There are characters thrown at the screen just for a quick visual gag, and it can land like a dud.

Thankfully, the rapid-fire approach works in the movie’s favor more often than not. If one gag falls flat, another is already on the way. Combined with the cast’s energetic performances and the movie’s infectious enthusiasm, the comedy remains consistently enjoyable even if every laugh isn’t earned.

Isla Monstro is the kind of independent animated feature that’s easy to root for. It has obvious shortcomings, from uneven animation to inconsistent comedy, but it also has an undeniable passion for monster movies. Shea delivers a self-aware film without becoming cynical, a nostalgic one without relying entirely on references, and a heartfelt one that overcomes many of its technical limitations.

Like the best classic movie monsters, Isla Monstro isn’t perfect, but its imperfections are part of what gives it so much personality. For genre fans willing to embrace something a little rougher around the edges, this creature feature is well worth visiting.

Flickering Myth Rating – Film: ★ ★ / Movie: ★ ★ ★

EJ Moreno

 

Filed Under: EJ Moreno, Movies, Reviews, Top Stories Tagged With: Andre Gowez, Barry Bostwick, Chris Sabat, Dana Snyder, Dia Frampton, Gigi Edgley, Harland Williams, Harry Lennix, isla monstro, J. LaRose, James Marsters, James Schrader, John DiMaggio, Juliana Harkavy, Kristina Klebe, LeeAnna Vamp, Maurice LaMarche, Spencer Grammer, Steven Shea, Will Friedle

About EJ Moreno

EJ Moreno is a film and television critic and entertainment writer who joined the pop culture website Flickering Myth in 2018 and now serves as the executive producer of Flickering Myth TV, a YouTube channel with over 27,000 subscribers. With over a decade of experience, he is a Rotten Tomatoes-approved critic who is also part of the Critics Choice Association and GALECA: The Society of LGBTQ Entertainment Critics.

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