So much of what makes something iconic in pop culture is a strong, simple & instantly recognizable image. 
With her pale skin, full blood-red lips, sharp cheekbones and devil's horns, Maleficent is an iconic role for Angelina. 
It will be the #1 Halloween costume of the year (it's easy to do + kinda "scary" and sexy) and Disney will keep the character alive in its theme parks and on the Disney Chanel. 
Poor Vin, youkneekorn, GreasyBruce, Sasha Pieterse, etc. 
