Isn't it weird watching those first two episodes, knowing what fate has in store for all of our precious characters?
I don't know if Sarah consciously lost weight or if she just lost the weight with age. She was still pretty young during the first season of Buffy, wasn't she? I remember reading an interview she gave about that time and she said something about everyone going out drinking after filming was over and she couldn't because she was underage! Maybe she was filled out more at first because she was still young?
You made me realize I've never watched the episode commentaries on any of the Buffy DVDs. I don't even know if they have episode commentaries but I assume they do. I want to go and check now!