Star Wars
Although Jedi are not allowed to get married, as an adult, Anakin falls in love with Senator Padmé Amidala and they get married. Anakin's later has nightmares of Padmé dying in childbirth so he asks for help from the evil Darth Sidious. Sidious teaches Anakin to become a Sith and Anakin becomes Darth Vader. Sidious uses his army to kill all of the Jedi, with only Yoda and Obi-Wan surviving.