Buffy the Vampire Slayer legend Sarah Michelle Gellar has been praised by a new co-star for turning up on set every day to act as an advisor for the series' lore. And yes, that includes describing exactly how people should look when they're bitten by a vampire.

Sarah Michelle Gellar has officially reprised her role as Buffy Summers in the Buffy the Vampire Slayer reboot. Check out the first look of the actress filming on set in Los Angeles.