In order to convince as Warrior’s mixed martial-arts champion, Hardy went on a no-carb, no-sugar diet that turned him “foul-tempered, belligerent and unreasonable.”

He winces in remembrance, “99 per cent of the job is imagining other people’s insecurities, and that went right out the fucking window! I felt on edge all the time because I’m very sensitive and I hate pissing people off – but I fucked a lot of people off on Warrior.”