In October 2015, Gellar co-founded Foodstirs, a food-crafting brand and e-commerce startup selling baking kits for kids.
Gellar also starred in Veronika Decides to Die 2009.
She then played Kathryn Merteuil in Cruel Intentions 1999 and appeared as Daphne Blake in Scooby-Doo 2002 , her biggest live-action commercial success.