Anvilicious: The awfulness in the systematic discrimination and rounding up of the hemophages is hammered on in one particular scene where a family of hemophages is seen dressed up as Hasidic Jews, complete with biohazard patches.
Better on DVD: The unrated version of the film reincorporates nine minutes of cut footage that flesh out the backstory of the hemophages and the character of Violet.
Big-Lipped Alligator Moment: The Blood Chinois. They are a random Asian gang that randomly appear in the movie, have no apparent motive and backstory besides "You're in our territory", set up a ridiculous action scene, and they are mentioned precisely once later when Nerva's goons try to intimidate Violet by reminding her they aren't Blood Chinois, as if we knew enough about them to use them as a gauge of strength.
Complete Monster:Vice Cardinal Ferdinand Daxus, ruthless leader of the Arch-Ministry government, initially created the virus that led to the birth of the hemophages. Daxus initiates a purge of Hemophages, wiping them out to nearly the final few members of the species after subjecting many of them to horrible experiments. Cloning himself constantly, Daxus experiments with the clones to find a way to create a new plague to use on humans since with the hemophages almost gone, he fears his authority will slip away. Planning on dissecting his latest clone Six, Daxus reveals himself as a hemophage by the movie's end, willing to destroy whatever he has to, even his own kind, in order to keep his grip on power.
Faux Symbolism: The prologue shows hemophage victims wearing black hats and clothing, being harassed by skinheads, and herded into camps. This sequence serves no narrative purpose and is never referenced again. Presumably because after the opening sequence, almost all the hemophages were executed. As Violet herself says, "The ones that survived started fighting back."
Whilst Storming the Castle, Violet faces one room full of Mooks in pure-white NBC gear, which just makes the Bloodless Carnage all the more blatant. Combined with relatively tame choreography, this fight is a particular low point in the film.
The duel between Violet and Daxus has its problems, too. The idea is awesome — a Sword Fight in total darkness, lit only by the fact that the swords are on fire — but because they actually filmed it straight, without employing Hollywood Darkness, you can't make much sense of what's going on.
The final fight with The Blood Chinois is one, too. It's more or less the same shot over and over.
Special Effects Failure: The film's extensive visual effects were never completed as intended due to Executive Meddling, and it SHOWS. Several scenes, including the infamous motorcycle chase, use incomplete temp-renders that were never meant to be seen outside of the editing room.
Body Horror: In Episode 2, a vampire accidentally runs down a young woman and breaks her spine in multiple places, paralyzing her for life. He then turns her into a vampire so she can walk again. She's still wearing her hospital gown when she confronts Michael, and her back is exposed. There is a blood-chilling shot from behind in which you see her back is still broken, even as a vampire. The pieces of her spine are visibly misaligned under her skin, and every time she moves there are clicking sounds as the bones grind together.
Fanon: There's a belief among some fans (and on the packaging of some DVDs) that the central characters' unnamed organisation is called the CIB. This is a misunderstanding of dialogue in the first episode, in which their cover story to the police is that they're working for the Complaints Investigation Bureau, which at the time in real life was the name of the Metropolitan Police's Internal Affairs unit.