Netflix’s latest attempt to launch a blockbuster film franchise is a comic book adaptation about a group of immortal warriors, led by Charlize Theron, who’ve been secretly fighting to help the rest of humanity down the centuries. Despite their efforts to remain hidden, someone shady has picked up their trail. At the same time, a new immortal (If Beale Street Could Talk’s KiKi Layne) has appeared for the first time in 200 years.

If you’re looking to start an action/fantasy franchise nowadays, what better bet than superheroes? The Old Guard is sort of a superhero movie, but also not really. Their only superpower, which they all share, is a Wolverine-esque healing ability. They can die, they just get better (most of the time). So whether you class this as a “superhero movie” probably depends on your personal definition. I think some critics have just seen “based on a comic book” and gone “superheroes!”, and it’s a shame we haven’t got past that attitude by now. Equally, yeah, the characters do have a superpower, so fair enough. But the film itself plays more like an action-thriller, with the team relying mostly on guns and military tactics in combat rather than special abilities.

Bearing that in mind, the concept has fundamental similarities to another recent big-budget Netflix actioner, Michael Bay’s 6 Underground (which I’ve seen but not reviewed yet, fyi). Whereas that was about a band of off-the-grid mercenaries working in secret to try to influence the course of human history for the better by going around shooting bad guys, The Old Guard is about a band of people who can’t die working in secret to try to influence the course of human history for the better by going around shooting bad guys. Obviously the set dressing is different — The Old Guard has a lot more mythology to explain, and the heroes occasionally whip out swords and axes and stuff; and it lacks (for good or ill) the unique storytelling style of Bayhem — but, honestly, at heart it’s the same deal.

They’re also equally badly written. It’s what we expect from Michael Bay at this point — a plot that might hang together if he ever stopped to let it be explained, but instead he’s more concerned with amping every single scene up to 11 with hyperactive editing and gonzo action sequences. The Old Guard, on the other hand, does stop to explain stuff. All. The. Time. Half the dialogue is characters speaking in infodumps to fill us in on this world. Or not fill us in, because there are gaps. It’s hard to tell if those are deliberate mysteries meant for a sequel (there’s a definite sequel tease at the end, naturally) or if the filmmakers just got bored of world-building and decided the characters don’t know how it works either.

On the bright side, it has some nice grace notes, like a betrayal I actually didn’t see coming, or Chiwetel Ejiofor injecting genuine emotion into his character’s motivations. Two of the immortals are a gay couple, played by Luca Marinelli and Marwan Kenzari, the latter of whom was Jafar in Disney’s live-action Aladdin (another one I’ve seen but not yet reviewed). He’s much better here, to the extent you wonder how he was such a limp Jafar. Anyway, the pair get a nice scene when they’re captured by a van full of enemy soldiers: a “what is he, your boyfriend?” taunt receives an epically romantic answer that’s an even better putdown than just “yes”. They also get a couple of beats of welcome humour later on. Not laugh-out-loud stuff, but this is quite a dour film otherwise. Most of the action is well staged if unremarkable, although the finale is a rather good assault on the villain’s HQ, ending with a couple of cool deaths.

Despite the poor dialogue and certain familiarities of concept, The Old Guard is more blandly acceptable than 6 Underground. And yet it never swings as big as Bay’s films — for all his many faults, his “go big or go home” style has its merits as blockbuster entertainment. Nothing here is going to stick in the memory as much as 6 Underground’s opening car chase, or midway apartment assault, or madly overblown yacht climax. All told, I’d rather have 7 Underground than 2 Old 2 Guard, please Netflix. Both would be fine.

The Old Guard is available on Netflix now.