Oh, and BARAKA by Ron Fricke. Easily my favourite film of all time. The most beautiful and precise time lapse footage of our world shot on 70mm large format (before the days of iMax and before digital really exploded - and yet perfect for repro on Blu Ray). There's no words, no verbal storyline, just a 90min journey across the planet looking at the natural world and the earth as dominated by mankind. Its unpatronising in its presentation and universally understood by anyone, anywhere. We could show this to aliens and they would understand the last 5,000 years of our planet.
Watch this stoned and it will change your life. I am fully aware of the magnitude of this claim, and so you'll believe me when i say i mean every bit of it.