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Prince William, Duke of Cambridge, and Catherine, Duchess of Cambridge, Kate Middleton

CARL COURT/AFP/Getty Images

Royal date night!

Prince William and Kate Middleton will be taking a break from diaper duty for a little evening at the movies next month.

St. James's Palace has announced that Prince George's mom and dad will attend the U.K. premiere of Mandela: Long Walk to Freedom as part of the annual Royal Film Performance at the Odeon Leicester Square in London on Dec. 5.

Money raised from this year's event will go directly to the Cinema and Television Benevolent Fund, which supports film and television industry employees and their families in times of hardship, as well as The Nelson Mandela Children's Fund, which is committed to creating a better future for children in South Africa.

Before the screening, the Duke and Duchess of Cambridge will meet the film's stars Idris Elba (Nelson Mandela) and Naomie Harris (Winnie Mandela), director Justin Chadwick and Nelson Mandela's daughter Zindzi Mandela.

Of course, this won't be the first time William and Kate have attended a movie premiere. Last year, the two were on hand for the London debut of Steven Spielberg's War Horse.

Meanwhile, Mandela: Long Walk to Freedom hits U.K. theaters on Jan. 3, 2014. It opens in limited release in the U.S. on Nov. 29.