Flick Miles, Emma Watson’s body double in the “Harry Potter” films, recently participated in a Reddit "Ask Me Anything.” Miles surprised fans by revealing that she starred in a scene that most assumed was CGI.
Miles revealed that she stepped in for Watson during the famous Polyjuice Potion fiasco in “Chamber of Secrets,” after Watson had a reaction to the glue used to attach the furry mask. Many fans were shocked that the effect was created with makeup and not CGI.
Miles said that "The mask was made up of hundreds of pieces, to the point where even each whisker was individually stuck to me." Although the mask was real, She added that the eyes were in fact CGI.