Aunt Marge actually inflated.
This is Mark Coulier. He’s a makeup artist with two Oscars, two BAFTAs, a ton of amazing credits — and he worked on all eight Harry Potter movies.
Dan Macmedan / WireImage
He recently dropped by BuzzFeed to turn us into zombies, and while he was here, we picked his brain (haha) about his experience working on the magical films.
Macey J. Foronda for BuzzFeed
The underwater scenes from Goblet of Fire were « really intense, » and so was the makeup. The gills Harry grows after eating the Gillyweed took about an hour and a half to apply and were made of silicone.
« [Dan's] underwater swimming in a real tank, and just to get one shot was amazing. There’d be, like, 20 divers underwater. One would be moving bubbles out of his hair and off his face… You wouldn’t believe the difficulty of getting just one shot, » Coulier told BuzzFeed.
The interior gill filaments were made out of silk so they would flow nicely and billow underwater.
« We did so many tests for that, on both Dan and his double. »