X2: X-Men United (2003) Review: Still the Best Sequel

🚪 Introduction

🧬 This review is part of our X-Men Hub – every X-Men film and show we’ve covered, ranked and explained.

Sequels rarely improve on the original, and superhero sequels made in the still-cautious blockbuster landscape of 2003 improved on their originals even less often. X2: X-Men United is the exception that most fans still point to first. Bryan Singer opens the film with Nightcrawler teleporting through the White House in an assassination attempt on the President — a sequence that remains one of the best the franchise has ever produced — and the film mostly sustains that level of ambition for two more hours.

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X2: X-Men United (Blu-ray) (opens in a new tab)

The original trilogy's high point, on disc.

The plot this time is genuinely bigger: William Stryker, a black-ops colonel with a personal history connected to Wolverine, launches an assault on Xavier’s mansion, forcing the X-Men into an uneasy, temporary alliance with Magneto and his Brotherhood. That forced-alliance structure is what elevates X2 above a standard sequel, and it’s why my score lands at a genuine 3.5/5 — the high point of the original trilogy, honestly assessed.

🕵️ William Stryker: A Villain Who Actually Works

Brian Cox plays Stryker as a man who’s convinced himself he’s the reasonable one — a soldier who’s seen what mutants can do and has decided extermination is simple pragmatism, not hatred. That’s a more unsettling kind of antagonist than a cartoonish supervillain, and it gives the film’s central argument (registration, containment, coexistence) a genuinely dangerous edge. Stryker’s connection to Wolverine’s past — revealed gradually as Logan investigates his own missing memory — also does real work tying the character’s arc together across the trilogy.

The mansion assault itself is one of the film’s best sustained sequences: Stryker’s soldiers moving through Xavier’s school at night, kids being evacuated mid-attack, Wolverine cutting a path through armed men to buy time. It’s tense in a way the first film’s more contained action never quite reached.

Brian Cox brings a controlled, procedural coldness to Stryker that makes the character feel like a real institutional threat rather than a costumed one — he’s not fighting the X-Men with powers, he’s fighting them with soldiers, funding, and government cover, which is arguably scarier. That framing also strengthens the film’s registration-act subtext: the real danger to mutants was never going to be another mutant with a grudge, it was always going to be an ordinary man with institutional power and a righteous certainty that he’s doing the necessary thing.

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🤝 An Alliance Nobody Wants

The film’s smartest idea is forcing the X-Men to break Magneto out of his plastic prison and team up with the Brotherhood to survive Stryker’s plan — a scheme that would use Xavier’s own psychic powers, amplified through Cerebro, to wipe out mutantkind. Watching Xavier and Magneto cooperate under duress, both fully aware the alliance ends the second the immediate threat is gone, gives the film a tension that the first movie’s more straightforward hero-versus-villain structure didn’t have room for.

It also pays off Jean Grey’s arc in a way that reshapes the whole trilogy: her sacrifice at Alkali Lake, holding back a flood of water with her telekinesis to save the team, sets up her apparent death and the Phoenix-related storyline that The Last Stand would pick up three years later. It’s a genuinely strong emotional beat, delivered without excess sentimentality.

The dam-break escape itself is staged with real tension — the team scrambling to get the Blackbird airborne as water floods in, everyone accounted for except Jean, who makes the split-second call to stay behind. It’s a rare moment in a 2003 blockbuster where a hero’s sacrifice isn’t undercut by an obvious last-second rescue, and it’s part of why the scene still gets cited as one of the series’ best character exits, however temporary it would eventually prove to be.

🏳️‍🌈 The Allegory Gets Sharper

X2 leans harder into the mutant-as-metaphor framing than the first film did, and one scene in particular has become the sequence people point to first: Bobby Drake (Iceman) coming out to his parents as a mutant, and his mother’s first, devastating question — “have you tried not being a mutant?” It’s a direct, unmistakable parallel to a coming-out conversation, and the film doesn’t soften it. That kind of specificity is what separates X2 from a generic action sequel; it actually has something to say, and it says it clearly.

🎬 A Bigger Cast, Better Balanced

Part of what makes X2 feel like a genuine step up is how much more room the returning ensemble gets compared to the first film’s tighter 104-minute runtime. Storm and Jean Grey both get meaningful action beats of their own — Storm commanding a lightning-charged assault on Stryker’s fortress, Jean holding back a flood at Alkali Lake in the sequence that seals her fate — instead of orbiting Wolverine and Xavier for the whole runtime. Rogue and Iceman’s teenage relationship gets a real subplot rather than a background detail, and even Pyro’s slow drift toward Magneto’s worldview is seeded here in a way that pays off directly in The Last Stand.

That expanded ensemble never comes at Wolverine’s expense, either — his investigation into his own erased memory, and his brief, brutal confrontation with Stryker over what was actually done to him at Alkali Lake, gives Jackman’s performance a genuine mystery to chase across the runtime. It’s the rare franchise sequel that manages to deepen its side characters and its lead simultaneously, rather than picking one at the other’s expense.

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👨‍👦 The Dad Angle: A Story About Forced Cooperation

Beyond the action, X2 is fundamentally a story about people who disagree completely being forced to work together because the alternative is worse — a genuinely useful family-conversation setup, whether you’re talking about a sibling rivalry or a bigger disagreement. The Bobby Drake coming-out scene, in particular, is worth watching with older kids specifically because of how directly it handles the conversation.

It’s rated PG-13 for action violence and one intense assassination sequence, with mutant-persecution themes running throughout. Comparable in intensity to the original film — fine for most kids 10-12 and up, and genuinely worth watching together specifically for the Bobby Drake conversation.

Wolverine’s search for his own erased memory here is exactly the mystery our X-Men Origins: Wolverine review fills in from the beginning, decades of Weapon X history and all.

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The original trilogy's high point, on disc.

Want to watch it tonight? Prime Video’s 30-day free trial is worth grabbing before you queue up the rest of the trilogy.

Is X2: X-Men United worth watching?

Yes — it’s widely considered the best film in the original X-Men trilogy, and it still holds up. The Nightcrawler White House opening alone is worth the runtime, and the William Stryker plot gives the mutant-persecution allegory real weight. A solid 3.5/5.

Do I need to watch the first X-Men movie before X2?

Yes, X2 assumes you know the team and the Xavier/Magneto relationship from the 2000 film. It picks up plot threads directly and rewards having seen the setup first.

Who plays Nightcrawler in X2?

Alan Cumming, in a performance built almost entirely around physical teleportation choreography and a genuinely unsettling opening assassination attempt. It remains one of the franchise’s most memorable single scenes.

Is X2: X-Men United appropriate for kids?

Rated PG-13 for action violence, one intense assassination sequence, and ongoing mutant-persecution themes. Comparable in intensity to the original film; fine for most kids 10-12 and up.

How does X2 connect to X-Men: The Last Stand?

X2 ends on a cliffhanger involving Jean Grey’s apparent death, which directly sets up the Dark Phoenix storyline that The Last Stand picks up (and, many fans argue, rushes through) in 2006.