Luckily we live in the country and have pretty great well water. I will buy a case of bottled water and then wash and refill them with our tap/well water for a good while. Mostly do that just for the convenience of the bottles. Maybe there are "risks" regarding reusing the bottles but I think we'll live!
I just know I couldn't afford to buy the amount of bottle waters that we actually go through and I'd rather the water get consumed than sodas and such.
I'll have to check out that movie.