The Nutcracker and the Four Realms is a 2018 American fantasy adventure film directed by Lasse Hallström and Joe Johnston based on a screenplay by Ashleigh Powell. It is a retelling of E. T. A. Hoffmann's 1816 short story "The Nutcracker and the Mouse King" and Marius Petipa's and Pyotr Ilyich Tchaikovsky's 1892 ballet The Nutcracker, about a young girl who is gifted a locked egg from her deceased mother and sets out in a magical land to retrieve the key. The film stars Keira Knightley, Mackenzie Foy, Eugenio Derbez, Matthew Macfadyen, Richard E. Grant, Misty Copeland, Helen Mirren, and Morgan Freeman.