The film falls back on the myth of modernity being born in the laps of practical, native-born American ingenuity.

The Current War seems to have suffered from its tumultuous production history. Or, just maybe, it was always destined to be this ungainly.

Top-hatted, frock-coated, mutton-chopped chaps burbling on about the relative advantages of the alternating current versus direct current system does not, in fact, make for electrifying drama.

It’s a decent piece of filmmaking in terms of cinematography and the odd bit of dialogue, but in the end, there’s little to separate it from other movies in which Cumberbatch plays a genius.