proving you can't OD on weed isn't going to encourage legalization. to prove a point, you should do something similar to what the guy in 'super high me' did, only much more carefully, thoroughly and acurately. what i would do is: 1. not smoke weed for 6 months. take IQ tests, get a physical, get MRI scans of your brain, etc after 6 months. 2. smoke weed everyday for 6 months. take all those tests over again and see if there is a difference. or, alternatively, if you are an athlete: 1. train hard for 6 months, run a marathon (or 10k) 2. continue training for 6 more months but smoke weed every day. run the same marathon or 10k and see if there is a dramatic difference in your times. the guy in 'super high me' was not scientific enough in my opinion to make a strong, solid point. if you do all the tests and controls properly, you could prove something useful.
I think the guy did a fine job on the movie... but people didn't believe it, still. Its so fucking ridiculous that people still think you can OD... people are so fucking ignorant.