Makeup

A dentist was on standby for many of the young crowd scenes to replace teeth which wobbled and fell out – to prevent continuity issues involving teeth.

Harry's infamous scar has been put on by makeup approximately 5,800 times. This is not only on Daniel Radcliffe, who has had the scar applied approximately 2,000 times, but also on his doubles and stunt doubles, all of whom wear the scar.

Robbie Coltrane once got a mini-fan caught in his Hagrid beard and had to have it cut out.

190 liters of shampoo and conditioner were used on Harry Potter and the Deathly Hallows.

55 liters of hair tint/hair dye was used on Harry Potter and the Deathly Hallows.

Approximately 2,182 liters of shampoo and conditioner have been used across all the films, enough to fill 28 bathtubs.