This is a decent, if ponderous, piece of cinema entertainment featuring some A-list talent depicting an almost entirely fictional account of the battle to establish the standard of electrical current we all use today. Tesla is largely ignored (maybe Nicholas Hoult didn't have too many spare filming days in his schedule) and as such the credibility of the whole storyline is undermined. Tom Holland and Matthew Macfadyen deliver well on the supporting front, but Benedict Cumberbatch doesn't quite cut it. History is frequently rewritten for the benefit of Hollywood, but rarely to quite this extent...