A great documentary by BBC four about safety in Formula 1 in the '60 and '70, or better lack thereof. In the days that on a weekly basis drivers and spectators lost their lives. Today's F1 might be considered sterile and distant, but it certainly is much safer. The last driver to perish was Ayrton Senna da Silva on May 1st, 1994 during the San Marino GP in Imola, Italy. The last marshal to die was during the Australian GP in 2001 when Graham Beveridge was hit by Jacques Villeneuve's right rear tyre after he was launched by Ralf Schumacher. Nevertheless, it is still impressive to see how things were not too long ago.
Link to the documentary.