Sarah Michelle Gellar and Freddie Prinze Jnr are often hailed as one of Hollywood’s most beloved couples. The pair first met in 1997 while filming the horror movie I Know What You Did Last Summer and have been dating since 2000. They even starred in their memorable roles as Fred Jones and Daphne Blake in the 2002 live-action film Scooby-Doo. The couple tied the knot in 2002 and welcomed their first child, daughter Charlotte Grace, in 2009. On September 20, Gellar took to Instagram to celebrate...