The Secret of Moonacre

The Secret of Moonacre is a 2008 fantasy film based on the novel The Little White Horse by Elizabeth Goudge. The film was directed by Gbor Csup and starred Dakota Blue Richards in the leading role. The film premiered at the 2008 Toronto International Film Festival and was released in the United Kingdom on February 6, 2009 by Warner Bros.

In return, the Moon Princess decides to share the moon pearls with both families. But the power of the pearls incites greed in her father and fiancee, and the two begin to fight over them. In the scuffle, Sir William gets the locked casket containing the pearls, and Sir Wrolf the key. Angered and hurt by their selfish desires, the Moon Princess curses the land. If another Moon Princess does not arrive to reconcile the families and return the pearls to the ocean within fivethousand moons time, Moonacre valley will be plunged into eternal darkness. From that day on, the Merryweathers and de Noirs despised and blamed each other for the loss of the pearls, which mysteriously vanished.Hundreds of years later, Maria Merryweather is left an orphan after her father is murdered in London. At the reading of his will, she discovers that he gambled away the familys estate and most of her inheritance. The only thing left is a mysterious book titled The Ancient Chronicles of Moonacre Valley. Due to the loss of the house, Maria and her governess, Miss Heliotrope, must go live with Marias estranged uncle, Sir Benjamin, in Moonacre Valley, where her father departed from years before her birth. ........

Source: Wikipedia