Which casting decision in a Hollywood film was the most controversial?

Controversial casting decisions are not uncommon in Hollywood, with several films having faced criticism for casting choices. One of the most notable casting controversies in recent times was the casting of Scarlett Johansson as the lead in the 2017 film 'Ghost in the Shell.'

Many fans of the original anime series on which the film was based were disappointed with Johansson's casting, as the character she played was originally Japanese. Critics accused the filmmakers of whitewashing and of promoting 'yellowface,' which refers to the practice of casting white actors to play Asian characters.

Another controversial casting decision was the choice of Rooney Mara to play the character of Tiger Lily in the 2015 film 'Pan.' Critics accused the filmmakers of whitewashing, as the character was originally Native American. The decision was seen as particularly egregious given the shortage of roles for Native American actors in Hollywood.

Finally, the casting of Emma Stone as the character Allison Ng in the 2015 film 'Aloha' was also criticized. The character was supposed to be of mixed Asian and Hawaiian descent, yet Stone, who is white, was cast in the role. Many criticized the filmmakers for not casting an actor of Asian or Hawaiian descent for the role.