Be prepared to brace yourself in terms of the videos. I've been vegan for three years, and I'd read about a lot of the practices shown (and worse ones even!), but I was still just floored by some of the things I saw in "Earthlings."

That's great that you were able to be vegan in high school. I didn't come to any of these issues until I was 25. Though I was able to go vegetarian quickly (like immediately after reading a Vegan Outreach pamphlet) it took about a year for me to go vegan. I imagine it would have been a lot tougher in high school; I know I wouldn't have had parental support.