The Lord of the Rings: The War of the Rohirrim — release date, cast plot and everything we know

Lord of the Rings: The War of the Rohirrim title
(Image credit: New Line)

The Lord of the Rings: The War of the Rohirrim is an animated 2024 new movie set to plunge Tolkien fans back into a climactic battle from Middle-earth's past. 

Billed as a companion piece to director Peter Jackson's iconic movie trilogies, The War of the Rohirrim will connect back to the original Lord of the Rings movies with "story and artistic elements woven throughout that will reconnect fans to the excitement and cinematic wonder of Middle-earth", according to a WarnerMedia press release.  Another connection to the classic movies has been shared, as Peter Jackson and Fran Walsh are executive producers.

This is totally separate from the stories explored in Prime Video's The Lord of the Rings: The Rings of Power. Instead, the movie details the untold story behind the fortress of Helm's Deep.

Here's everything we know about The Lord of the Rings: The War of the Rohirrim.

The Lord of the Rings: The War of the Rohirrim release date

The Lord of the Rings: The War of the Rohirrim is set to premiere exclusively in movie theaters on December 13.

The Lord of the Rings: The War of the Rohirrim cast

The voice cast for The War of the Rohirrim is packed full of stars.

Succession star Brian Cox is providing the voice of the King of Rohan, Helm Hammerhand, whilst Gaia Wise (A Walk in the Woods) voices Helm's daughter Hera and Luke Pasqualino (Snowpiercer) is lending his voice to Wulf.

Lord of the Rings alum Miranda Otto is also set to reprise her role as Éowyn, Shieldmaiden of Rohan for The War of the Rohirrim, as Éowyn will serve as the movie's narrator. 

Other members of the voice cast include Lorraine Ashbourne (Bridgerton), Yazdan Qafouri (I Came By), Benjamin Wainwright (World on Fire), Laurence Ubong Williams (Gateway), Shaun Dooley (The Witcher), Michael Wildman (Hobbs & Shaw), Jude Akuwudike (Beasts of No Nation), Bilal Hasna (Sparks) and Janine Duvitski (Benidorm).

The Lord of the Rings: The War of the Rohirrim plot

When the movie was first announced in June 2021, Warner Bros released a synopsis that made it clear the movie centers on the fortress of Helm's Deep which was the site of that climactic battle from The Lord of the Rings: The Two Towers.

The synopsis said: "The Lord of the Rings: The War of the Rohirrim explores and expands the untold story behind the fortress of Helm’s Deep, delving into the life and bloodsoaked times of one of Middle-earth’s most legendary figures; the mighty King of Rohan - Helm Hammerhand."

Deadline also revealed offered up a little bit more info about the new movie. According to their report, The War of the Rohirrim is set 183 years before the events of Peter Jackson's trilogy. Their summary of the film reads: 

"A sudden attack by Wulf, a clever and ruthless Dunlending lord seeking vengeance for the death of his father, forces Helm and his people to make a daring last stand in the ancient stronghold of the Hornburg – a mighty fortress that will later come to be known as Helm’s Deep. Finding herself in an increasingly desperate situation, Hera, the daughter of Helm, must summon the will to lead the resistance against a deadly enemy intent on their total destruction."

The movie's script is written by Phoebe Gittins and Arty Papageorgiou.

The Lord of the Rings: War of the Rohirrim trailer

There is no trailer for The Lord of the Rings: The War of the Rohirrim as of yet. When one premieres online we'll add it here.

Hopefully that will be soon, as the first footage from the animated movie was shown at the 2024 Annecy Animation Festival.

Who's directing The Lord of the Rings: The War of the Rohirrim?

Kenji Kamiyama (Blade Runner: Black Lotus, Ghost in the Shell: Stand Alone Complex) has been signed on to direct The War of the Rohirrim.

Michael Balderston

Michael Balderston is a DC-based entertainment and assistant managing editor for What to Watch, who has previously written about the TV and movies with TV Technology, Awards Circuit and regional publications. Spending most of his time watching new movies at the theater or classics on TCM, some of Michael's favorite movies include Casablanca, Moulin Rouge!, Silence of the Lambs, Children of Men, One Flew Over the Cuckoos Nest and Star Wars. On the TV side he enjoys Only Murders in the Building, Yellowstone, The Boys, Game of Thrones and is always up for a Seinfeld rerun. Follow on Letterboxd.