"I didn't take it to heart," Dunst says in an interview in the latest issue of Entertainment Weekly. "How would we feel about the French doing a movie about George Washington with French actors?"
Sofia Coppola's costume drama with modern trappings opens in U.S. theaters Oct. 20.
The 24-year-old Dunst, whose screen credits include "The Virgin Suicides" and the "Spider-Man" movies, says making "Marie Antoinette" was a solitary experience for her.
"Sometimes I felt really isolated because it was such a lonely part to play," she says. "I didn't really interact with that many people ... I couldn't really rely on other people to get it out of me. I was really thankful when Jason (Schwartzman, who plays Louis XVI) was on set, because then I could unload a little bit on him.