<P> 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 . 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 . 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 . </P>
<P> 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 . 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 . 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 . </P>
when does anakin turn to the dark side
when does anakin turn to the dark side
Star Wars : Episode III -- Revenge of the Sith
Star Wars : Episode III -- Revenge of the Sith