This documentary is good in terms of the archive footage and interviews with personnel and family involved with both drivers, especially Ferrari, but I would encourage viewers to check out the Wikipedia entries for both drivers which cover a wider band of their careers and put things in a broader context. They also question some of the assertations and impressions made in the documentary, eg Hockenheim was both dry and wet and the doctors did not suggest that Pironi's leg would be amputated. There is also a claim that Pironi did not go back into F1, after successful testing with AGS and Ligier, partly due to the effects of his injuries but also because the insurance payout after his Hockenheim accident was conditional on his not racing in F1 otherwise he would have to repay a substantial sum. I think the documentary could have provided more technical detail and put things in a broader context than its dramatic narrative.