Star Wars: Revenge of the Sith 1

The Galactic Republic is on the verge of collapse as a result of the Clone Wars, which have been waged between the Republic and the Separatists for three years. In a surprise move, General Grievous, commander of the Separatist Droid Army, kidnaps Supreme Chancellor Palpatine and attempts to escape. During a battle over the planet Coruscant, Jedi Knights Obi-Wan Kenobi and Anakin Skywalker lead a mission to rescue the Chancellor, who is being held captive on Grievous's flagship. There they confront Count Dooku in a lightsaber duel; at the end of the duel, Anakin hesitantly kills Dooku at Palpatine's urging. The Jedi free the Chancellor and attempt to escape the battle-torn flagship, but Grievous traps them inside and escapes. Anakin pilots the collapsing flagship to safety on Coruscant. There, Anakin reunites with his wife, Padmé Amidala, who reveals that she is pregnant. Anakin is overjoyed with this news until he begins having recurring nightmares of Padmé dying in childbirth, similar to the visions he had of his mother before she died. Anakin resolves to prevent these visions from coming true.

Palpatine, concerned about the Jedi's motives, places Anakin on the Jedi Council to be his eyes and ears. Meanwhile, the Jedi Council has begun to suspect Palpatine of corruption and orders Anakin to spy on him, while also denying the young Jedi the rank of Master. Under Palpatine's influence, Anakin begins to grow distrustful of his fellow Jedi, and is intrigued when Palpatine mentions the power to prevent death, an ability only gained through the dark side of the Force. Obi-Wan is sent to the planet Utapau where he engages and kills General Grievous. Back on Coruscant, Palpatine reveals himself to Anakin as the Sith Lord Darth Sidious, who has been controlling both sides of the war. Anakin reports Palpatine's treachery to Jedi Master Mace Windu, who engages and subdues the Sith Lord in a lightsaber duel. Believing that Sidious is his only hope to save Padmé, Anakin intervenes and disarms Windu before he can execute Sidious, allowing the Sith Lord to kill the Jedi Master. Anakin is distraught by what he has just done, and Palpatine takes advantage of Anakin's emotionally drained mind to submit him to the dark side and becomes Sidious's new apprentice, Darth Vader.

Darth Sidious initiates a pre-programmed directive within all clone troopers to kill their Jedi commanders, while Vader kills all the Jedi within the Jedi Temple, including the children. Obi-Wan and Yoda survive the extermination, and meet up with Senator Bail Organa, who brings them to the Jedi Temple while Palpatine reorganizes the Republic into the Galactic Empire, with himself as Emperor. Vader, meanwhile, heads to the volcanic planet of Mustafar where he slaughters the remaining Separatist leaders. Within the Jedi Temple, Obi-Wan witnesses security footage of Anakin's massacre as Darth Vader. Yoda tells him to confront and kill Vader, and to accept that the friend he had known is gone forever.

Obi-Wan meets with Padmé, who refuses to believe that her husband has fallen to the dark side. She travels to Mustafar to be with him, unaware that Obi-Wan has secretly stowed aboard. Once she confronts Vader, however, she realizes that Obi-Wan was telling the truth. Spotting Obi-Wan within her ship, Vader accuses Padmé of betraying him and uses the Force to strangle her into unconsciousness. Obi-Wan and Vader engage in an epic lightsaber duel across the volcanic facility and over a river of lava. Finally, Obi-Wan gains the upper hand and severs Vader's legs and left arm. Vader slides down a bank of volcanic ash and bursts into flames, sustaining severe burns and lung damage, while Obi-Wan picks up Anakin's lightsaber and leaves him to die. Obi-Wan escorts the injured Padmé to the asteroid Polis Massa where he regroups with Senator Organa and Yoda, the latter of whom has gone into self-imposed exile after dueling Darth Sidious to a stalemate. Meanwhile, Sidious finds his maimed apprentice and takes him back to Coruscant to revive him.

Padmé gives birth to twins, a boy named Luke and a girl named Leia, and dies, but not before insisting to Obi-Wan that there is still good in Anakin. Meanwhile, Sidious has Darth Vader rebuilt in black cybernetic body armor and respirator suit to keep him alive. When Vader asks for Padmé, Sidious tells him that she died as a result of Vader's anger. This revelation breaks what remains of Anakin's spirit, and he screams in torment. He is last seen at Sidious' side, overseeing the construction of the first Death Star.

With Anakin's children the last hope for the galaxy, Obi-Wan, Yoda and Organa agree that they should be hidden and separate from one another. Leia is taken to Alderaan to be raised by Organa, while Obi-Wan takes Luke to Tatooine to live with his uncle Owen and aunt Beru.