Just had to post these bad boys up, these trailers are fuckin amazing. I watched the Tyson documentary like a week ago, and it's pretty awesome. It gave some good insight of who Tyson the actual person is. And I have to say, he did redeem himself in it a bit. Just a pity he got sidetracked with the excesses that come with fame and fortune.
Haven't seen the Ali documentary yet, but that insane trailer has asserted that he's truly the greatest!