If you are going to see one documentary this year, Tapped may be the one that gives you the most useful information. There are many environmental documentaries that leave one wondering, ‘what can I do that would really change THAT in a meaningful way?’ This isn’t one of them. After all, the message of this invective against bottled water is easy enough to absorb: avoid bottled water. It doesn’t sound like it’s worth 80 minutes, but it is.