I’ve kind of always felt that if you are going to eat and wear animals you owe it to them to at least know what they went through for you.
Warning: extremely graphic content. Not suitable for children.
Meet Your Meat (with Alec Baldwin)
Unforgivable cruelty in the dairy industry
A Look That Kills: Fur, Leather, and Wool
Top 3 Reasons not to eat fish
There are plenty more videos on related topics here: http://www.petatv.org