Patients who opt for surgery, which is storyline in Materialists film, warned they risk infection, nerve damage and disability

It is the ultimate eyebrow-raising kitchen table confession in Celine Song’s romantic comedy-drama, Materialists.

After matchmaker Lucy (Dakota Johnson) grows suspicious of scars on her new partner’s body, financier Harry (Pedro Pascal) makes a startling admission: he has had leg-lengthening surgery – and gained six inches in height.

The couple split soon after. But amid a wave of interest in the cosmetic procedure and clinics in Turkey offering discounts, the NHS in England has issued a stark warning, urging people against it.

The surgery involves breaking the bones in the legs before pulling them apart to lengthen them over weeks or months.