Why is “Emilia Perez” causing controversy? Inside criticism about the casting, French director, Mexican setting and transgender representation, and what stars and director have said.

With 13 nominations and a history-making star, “Emilia Pérez” leads among Oscar-nominated films this year. Then Karla Sofía Gascón, who plays the movie’s titular character, found herself in a firestorm after her offensive social media comments resurfaced.