Maleficent: Mistress of Evil

Five years since King Stefan's death, Aurora has benevolently reigned as Queen of the Moors, alongside Maleficent as its powerful guardian and protector. Despite her service, the neighbouring kingdom of Ulstead, home to Aurora's boyfriend Prince Philip, still sees Maleficent as a dangerous villain. Diaval, Maleficent's raven and confidant, overhears Aurora accepting Philip's marriage proposal. When he relays this to Maleficent, she advises against the union, though Aurora vows to prove her wrong.
Philip's parents, King John and Queen Ingrith, host an intimate dinner to celebrate. Maleficent maintains her composure after Ingrith tauntingly mentions Aurora's curse and Stefan's death. She openly claims Maleficent killed two human fairy poachers last seen near the Moors. When Ingrith carelessly dismisses Maleficent and Aurora's maternal bond, Maleficent reacts angrily and seemingly curses John, who suddenly falls into a deep slumber; Maleficent says she did not curse him, though Aurora disbelieves her. Philip urges his mother to awaken the King with a kiss; Ingrith resists, and her weak attempt fails because she does not love John. As Maleficent flees the castle, Ingrith's servant, Gerda, shoots Maleficent with an iron bullet.
Wounded, Maleficent falls into the ocean and is rescued by a winged creature. She awakens in a cavern where fairies like herself have been in hiding. Among them is Conall, their peaceful leader who saved Maleficent, and Borra, who favors open conflict with humans and had killed the poachers. Maleficent is among the last creatures called Dark Fey, powerful fairies forced into hiding and nearly driven to extinct by human oppression. She is also the last descendant of the Phoenix, an ancient and powerful Dark Fey ancestor. Because Maleficent's magic is so powerful, Conall and Borra believe she is instrumental in ending the conflict with humans through peace or war.
Meanwhile, Aurora is disillusioned with being an Ulstead noblewoman but is happy the Moor denizens are invited to the wedding. Aurora discovers that Ingrith hates all Moor fairy folk, bitterly resenting their prosperity during one winter when her kingdom had suffered and blaming them for her brother's death; she secretly plots to eradicate all Moor residents using iron weapons and a lethal crimson powder developed by Lickspittle, a de-winged pixie. Aurora also learns that Ingrith cursed John, using Maleficent's cursed spindle, which Ingrith had somehow taken to Ulstead. Ingrith finds out and has Aurora locked up.
The Moor folk are trapped inside the castle's chapel when they arrive. At Ingrith's command, Gerda unleashes the crimson powder by playing the chapel's organ. The fairy Flittle selflessly sacrifices herself to save everyone as a last resort by clogging the organ, rendering it unplayable, while fairies Knotgrass and Thistlewit cause Gerda to fall to her death. The Dark Fey attack Ulstead, but soldiers slaughter them until Maleficent joins the battle, channeling the Phoenix power. She nearly kills Queen Ingrith, but Aurora appeals to Maleficent's humanity, declaring only Maleficent is her mother. Distracted, Maleficent is struck by the Queen's powder-tipped arrow, dissolving into ashes. Devastated, Aurora mourns, but her tears revive Maleficent as a Phoenix. Terrified, Ingrith throws Aurora from the tower and flees, but Maleficent saves her. Borra and the Dark Fey stop Ingrith's escape.
Philip forges peace between the two sides, causing the Ulstead soldiers to stand down. Maleficent reverts to her fairy form and bestows her blessing upon Aurora and Philip. After receiving it from Lickspittle, Maleficent destroys the spindle and its curse, awakening John. As punishment, Ingrith is transformed into a goat by Maleficent, until she can embrace peace between the two peoples. After Aurora and Philip are wed, Maleficent returns to the Moors with the other Dark Fey, promising to return for the christening of Aurora and Philip's future child.