The Matrix-fication of monsters
Released in 2003, Underworld is the ultimate time capsule of the post-Matrix era. It was a moment when every action movie felt legally obligated to feature floor-length leather trench coats, industrial soundtracks, and a color palette that looked like it was filmed through a bottle of Blue Powerade. It’s a movie that takes itself incredibly seriously, which is either its greatest strength or its biggest punchline, depending on how much you enjoy watching vampires use high-tech UV bullets to hunt werewolves.
While the critics were busy burying it (that 30% Rotten Tomatoes score is pretty brutal), audiences clearly found something to love. That 79% audience score tells the real story: this is a vibe movie. It’s not looking to win Oscars for its dialogue—which is often clunky and delivered with a whispery intensity—but it succeeded in building a world that felt lived-in and distinct. If you can lean into the early-2000s "cool" aesthetic, there’s a lot of fun to be had in the sheer commitment to the bit.
The "Cool" trap for younger viewers
Here is the friction point for parents: Underworld looks exactly like the kind of movie a 13-year-old would think is the coolest thing ever made. It has the supernatural lore of a fantasy novel mixed with the kinetic energy of a third-person shooter. However, the R rating here isn't just for a few stray swear words. It’s for a level of visceral violence that puts it in a different league than your average superhero flick.
We’re talking about "one grisly scene after another," as the reviews note. It’s less about the "spooky" horror of classic monsters and more about the "messy" horror of an action movie that uses monsters as its medium. If your teen is angling to watch this because they’ve exhausted the more mainstream vampire movies for teens, just know that Underworld trades the romance and angst of those titles for decapitations and heavy weaponry. It’s an action-horror hybrid that leans heavily into the horror side of that equation whenever a fight breaks out.
Lore vs. Logic
If you decide to dive in, don’t look for airtight plot holes. Look for the lore. The movie spends a surprising amount of time on the backstories of the various bloodlines and the ancient betrayal that started the war. This world-building is what kept the franchise alive through multiple sequels, even when the individual plots started to wear thin.
It’s the kind of movie that works best on a Friday night when you want something that looks slick and moves fast. Just be prepared for the fact that special effects have come a long way since 2003. Some of the werewolf transformations that looked cutting-edge then might look a bit like PlayStation 2 cinematics now. But if you’re an adult fan of the genre, that’s just part of the nostalgic charm. Just keep the remote close and the kids in the other room.