Freddie Prinze, Jr. and Sarah Michelle Gellar

Freddie Prinze Jr. and Sarah Michelle Gellar met on the set of I Know What You Did Last Summer all the way back in 1997. But it took them three years to finally get together. Once they started dating though, it was only a year before they were engaged and another year before marriage. Sarah actually changed her named to Sarah Michelle Prinze in 2007 for the couple's fifth anniversary. The couple have one child together, Charlotte Grace Prinze, who was born in September of 2009.