Long before Timothy Leary urged a generation to "tune in, turn on and drop out," lysergic acid diethylamide, or LSD, was being used by researchers trying to understand the human mind. This documentary is a fascinating look at the story of "acid" before it hit the streets. Featuring interviews with many LSD pioneers, Hofmann's Potion is much more than a simple chronicle of the drug's early days. With thoughtful interviews, beautiful music and stunning cinematography, it is an invitation to look at LSD, and our world, with a more open, compassionate mind.

What causes mental illness? Do our thoughts, moods, and behaviours depend upon what we eat? Psychiatrists Abram Hoffer and Humphry Osmond met in Saskatchewan in 1951. They set out to prove that the symptoms of schizophrenia could be controlled with healthy, unprocessed food and large doses of vitamins. 60 years later, it looks like they may have been right.