Kimetsu no Yaiba: Mugenjou-hen

The All-Out War Begins.

Theatrical trilogy adaptation of the Infinity Castle Arc.

Kimetsu no Yaiba: Hashira Geiko-hen

The members of the Demon Slayer Corps and their highest-ranking swordsmen, the Hashira.
In preparation for the forthcoming final battle against Muzan Kibutsuji, the Hashira Training commences. While each carries faith and determination within their hearts, Tanjiro and the Hashira enter a new story.

(Source: Crunchyroll)

Notes:
• The first episode has a runtime of ~1 hour and received an early premiere in cinemas as part of a special screening alongside the final episode of Kimetsu no Yaiba: Katanakaji no Sato-hen.

Kimetsu no Yaiba

Since ancient times, rumors have abounded of man-eating demons lurking in the woods. Because of this, the local townsfolk never venture outside at night. Legend has it that a demon slayer also roams the night, hunting down these bloodthirsty demons. For young Tanjirou, these rumors will soon to become his harsh reality...

Ever since the death of his father, Tanjirou has taken it upon himself to support his family. Although their lives may be hardened by tragedy, they've found happiness. But that ephemeral warmth is shattered one day when Tanjirou finds his family slaughtered and the lone survivor, his sister Nezuko, turned into a demon. To his surprise, however, Nezuko still shows signs of human emotion and thought...

Thus begins Tanjirou's quest to fight demons and turn his sister human again.

(Source: VIZ Media)

Volume 7 contains a bonus chapter about Kanao Tsuyuri.
Volume 10 contains a bonus chapter about Inosuke Hashibira.

Kimetsu no Yaiba: Mugenjou-hen Franchise