I found this topic by chance on google because I'm also a fan of Senna, I didn't get to witness his time, but I decided to add other information. After his death, his institute still helps millions of poor children, he was not only a great driver, but differentiated outside of racing. The 2010 documentary is good, but the 2004 "Right to Win" is great.
Helped develop the NSX's
Tina Turner, George Harrison and Fangio were friends from him
Vsited Jim Clark's school. He said that Clark was his racing hero, also Fangio, Villeneuve and Fittipaldi
He would like Sylvester Stallone to be him in a movie, he said just before he died in 1994
His funeral was one of the largest of the 20th century, approximately 3 million people
The lap in Monaco is impressive, Donington Park '93 is a masterpiece and Top Gear is the best tribute:
I don't like to comparing drivers from different generations, but without a doubt it was one of the most iconic of all times.