Had Potential WARNING - Major spoilers!
The concept behind this movie is quite clever; bring together several fictitious characters to form a sort of "justice league" in the late 1800s. But there were problems.
Big ones.
Turning off my brain and suspending disbelief got me about one-third of the way into this movie. Yes, I can let go of the fact that they recruited Mr. Hyde, a murderer of innocents. Sure, I can overlook the fact that Skinner, having stolen the formula from the original scientist, managed to find a way to avoid going homicidally insane. I could even get past the automatic rifles and guided missiles in an era where cartridge-based firearms were a relatively new invention.
All these things are simply a matter of buying into the movie's premise. However, I found myself cringing at a few of the more glaring elements of the writing that rather ruined the entire movie for me.
A good place to start is quite a few of the lines that were pathetic attempts to be clever, but simply fall flat on the ground and twitched. Such as: "And I imagine you must have quite the library, Mr. Quatermain. All those books you must have read merely by looking at their covers."
"I hoped I'd get to nail you one more time. Didn't think it'd be literally." Ungh.
And worst of all while Skinner is laying on the floor burned and smoking he quips "I'll never play with matches again." Really? That's the best they (the writers) could do?
Next we have characters that seem to change personalities throughout the movie. One minute Hyde is an indestructible force who needs help from no one. The next he's calling for help from, of all people, Nemo, who he then immediately advises to run when he arrives.
Finally, there are the little plot incongruities that seem to blatantly defy the laws of common sense, like the Nautilus fitting through the canals of Venice even though it's been demonstrated to be about the size of an aircraft carrier. Or Dorian suddenly wasting away at the sight of his portrait, even though it had been suggested before that it had been hanging in his house until Moriarty stole it. Didn't he also mention that he had seen it getting older and older while he remained young? And how exactly did he smuggle and plant the half-dozen or so identical suitcase explosives without someone, either a main character or a crewman saying to themselves "Huh, that's strange. I wonder what's in those boxes with the odd clock-like thing attached to them?".
Though this movie did have a few fun moments as well, for instance the part where Qautermain is pinned down by enemy gunfire and exclaims "Automatic rifles?! Who in god's name has automatic rifles?".
"Most unsporting." Agrees Nigel, "Probably Belgian."
And during the battle between the immortal Dorian and vampiric Mina which Dorian observes as his wounds heal instantly; "We'll be at this all day."
These, while funny, are simply not enough to keep the film from becoming very lousy very quickly. And in the third act it rather falls apart completely. A sequel was hinted at by the final seconds of the final scene, but lets hope it's just allowed to die.