'Mufasa: The Lion King' is in theaters Dec. 20 is roaring into theaters soon. At the fan event held in ​​Anaheim, Calif.

on Aug. 9, Walt Disney Studios unveiled a new full trailer for the movie, a prequel to 2019's blockbuster live-action reimagining of . A previous , featuring narration from Rafiki and a first look at young Mufasa set to the “Circle of Life” song.

will take viewers through the character's origin story as he goes from an orphaned cub to the legendary king of the Pride Lands. It will also tell the story of his relationship with his brother Taka, otherwise known to fans as Scar. Kiara, the daughter of Simba and Nala, is in parts of the film, as are Timon and Pumbaa.

"What you'll learn from the story is that Mufasa is who he is ...

because of the family and the friends that he has,” director said at Disney's D23 Expo back in 2022. “And so I saw myself in that. I thought: 'This is a really beautiful story to tell.

' " Related: The return of the much-loved animated film will also include the actors who voiced the characters in the 2019 installment. , , , and will all reprise their roles as Simba, Pumbaa, Timon, Rafiki and Nala, respectively. There will be a few fresh faces as well.

The new cast members include as young Mufasa, . as young Scar, Tiffany Boone as Sarabi, as Kiros, as Eshe, Lennie James as Obasi, and making her feature film debut as Kiara. Related: Blue Ivy previously became the in 2021 at 9 years old after she was credited on her mother Be.