when does anakin turn to the dark side
Darth Vader In Star Wars: Episode III – Revenge of the Sith, set three years after Attack of the Clones, Anakin is now a Jedi Knight and a hero of the Clone Wars. He and Obi-Wan lead a mission to rescue Palpatine from Separatist commander General Grievous on board his starship. When the Jedi encounter Dooku, Anakin subdues the Sith Lord, and on Palpatine's urging, kills him in cold blood. They rescue Palpatine and return to Coruscant, where Anakin learns that Padmé is pregnant. Anakin has visions of Padmé dying in childbirth and becomes determined to prevent them from coming true.[60] Palpatine tells Anakin that the dark side holds the power to cheat death, and eventually reveals that he is the Sith Lord Darth Sidious. Although Anakin informs Jedi Master Mace Windu of Palpatine's treachery, he follows Windu to make sure Palpatine is captured alive. When he realizes that Windu is going to kill Palpatine, Anakin intervenes on the Sith Lord's behalf, allowing Palpatine to kill Windu. Desperate to save Padmé, Anakin pledges himself to the dark side and becomes Palpatine's Sith apprentice, Darth Vader.[60] On Palpatine's command, Vader leads a legion of clones to kill everyone at the Jedi Temple and massacres the remaining Separatist leaders hiding on the volcanic planet Mustafar. Padmé confronts Vader and implores him to abandon the dark side, but Vader refuses. When Obi-Wan disembarks from Padmé's ship, Vader accuses his wife of conspiring against him and uses the Force to choke her into unconsciousness in a fit of rage. After a long and ferocious lightsaber duel, Obi-Wan defeats Vader, severing his legs and arm and leaving him at the bank of a lava river where he is horribly burned. Palpatine finds Vader and takes him back to Coruscant, where his apprentice's mutilated body is treated and covered in the black armored suit first depicted in the original trilogy. When Vader asks about Padmé's whereabouts, Palpatine explains to him that he killed Padmé in his anger; Vader screams in agony, his spirit broken. By the end of the film, Vader supervises the construction of the first Death Star alongside Palpatine and Wilhuff Tarkin.