Gellar met her future husband, Freddie Prinze Jr., while they were filming the 1997 teen horror film I Know What You Did Last Summer, but the two did not begin dating until 2000.
They were engaged in April 2001 and married in Mexico on September 1, 2002, in a ceremony officiated by Adam Shankman, a director and choreographer with whom Gellar had worked on Buffy the Vampire Slayer.

Prinze and Gellar have worked together several times; they played each other's respective love interests as Fred and Daphne in the 2002 film Scooby-Doo and its sequel, Scooby-Doo 2: Monsters Unleashed, and both provided their voices for the animated feature film Happily N'Ever After (2007) and the animated science fiction series Star Wars Rebels.
In 2007, in honor of their fifth year of marriage, Gellar legally changed her name to Sarah Michelle Prinze.

Together, Gellar and Prinze have two children, a daughter born in 2009 and a son born in 2012.
The family lives in Los Angeles.
Gellar met her future husband, Freddie Prinze Jr., while they were filming the 1997 teen horror film I Know What You Did Last Summer, but the two did not begin dating until 2000. They were engaged in April 2001 and married in Mexico on September 1, 2002, in a ceremony officiated by Adam Shankman, a director and choreographer with whom Gellar had worked on Buffy the Vampire Slayer. 
Prinze and Gellar have worked together several times; they played each other's respective love interests as Fred and Daphne in the 2002 film Scooby-Doo and its sequel, Scooby-Doo 2: Monsters Unleashed, and both provided their voices for the animated feature film Happily N'Ever After (2007) and the animated science fiction series Star Wars Rebels. In 2007, in honor of their fifth year of marriage, Gellar legally changed her name to Sarah Michelle Prinze.
Together, Gellar and Prinze have two children, a daughter born in 2009 and a son born in 2012. The family lives in Los Angeles.
Sarah Michelle Gellar