I guess I'm late to the party as well. Although, I was aware of Senna's skills and that he one numerous Championships, I never really knew his bio. I was happy to see (1) copy of the Senna DVD at my local Blockbuster. I like the documentary so much that I bought their only copy. I had my girl watch it and she really got into it - even Jr. who is 2 years old - was glued to the race footage.
I can truly appreciate the passion Senna had for F1/Racing. His journey to the top while having to deal with all the BS that one often encounters in life when aspiring to reach goals makes it a story, that even those who aren't into motorsports, should be able to relate to.