A viewing of this, preceded by Food Inc., I think should cause every person to rethink our food system, and how we eat. These two documentaries led my wife and I into deep discussions, research, and ultimately a Vegan lifestyle.
We eased into it (basically, we were not going to throw out non-spoiled food), but have been Vegan ever since, without much effort really. Our freezer is now essentially empty, and our refrigerator is always full.
My wife said the biggest difference at the start is that she became a "maker"; she makes vegan waffles and freezes them, she makes my children's granola bars (which they prefer over store bought), she makes bread, we bought a Champion Juicer which is PHENOMENAL and makes soft serve "ice cream" and sorbet from nothing but frozen fruit (as well as nut butters, pasta sauce, etc as well as juice of course)...
Long story short, we are vegan for health reasons, not moral. That falls in line with the ability of diet to be about %5 from animal products if desired. Although we haven't really, it means when we are with friends or places that are not as vegan friendly, we do not freak out, and just eat as close to it as possible.
For me, when it came down to it, when my best-friend/other half/wife says, "if this can help you, and me, live a longer healthier life, we should do it" how could I say no? She also said, "If I got cancer today, we'd go vegan tomorrow, so why not start today!"
Our family has terrible cancer histories and heart disease, so even though there is no %100 solution, if there is a way to minimize the risk, we are going to do it. Being with each other, and with our children (and future generations) matter. And I say this, as my father died 15 years ago at the age of 56, never meeting my wife, or his grandchildren.
Bottom line- Watch it! If you don't step away and it does not cause you to think about things differently, either you are already on this path, or the facts are too sobering you don't want to face them!