Nicole Kidman has admitted she is “sad” that her latest movie Grace of Monaco has been snubbed by the Monaco royals.

The movie officially opened the 2014 Cannes Film Festival last night, and as well as being slaughtered in reviews, the Grace Kelly biopic has also been publicly slammed as “a farce” by the Monaco royal family.

Princess Stephanie, Princess Caroline and Prince Albert have put out a statement distancing themselves from the movie, which sees Nicole Kidman portray Princess Grace while Tim Roth plays Prince Rainier.

Nicole spoke of her sadness that the movie hadn’t received the royal family’s support.

“It’s their mother and father. And I understand it’s protection of their mother and father,” said the actress. “Obviously I feel sad”.

The family’s statement on the Olivier Dahan-directed film was based on reading the script and seeing the trailer but Nicole is still hopeful one day they will watch the finished movie.

“Ultimately if they ever did see (the movie), I think they would see there was an enormous amount of affection for both of their parents and for the love story of their parents,” said the actress.

“The film has no malice toward the family, particularly towards Grace or Rainier,” she explained. “It’s fictionalized. It’s not a biopic. It’s the essence of truth. But you take dramatic license at times.”

The movie will hit Irish screens on June 6th.