"Flat Out: Formula One in the Sixties" is an extra included on the second disc of the feature film "Grand Prix". However, this short really ISN'T about the film "Grand Prix", but a general documentary about Formula One racing in the 1960s. In particular, it talks about how insanely dangerous the sport was and how various safety measures were necessary to enable it to continue. It was very interesting listening to just how dangerous it was and hearing the various racers and team members discussing it is well worth your time. My only complaint, and it's a minor one, is that the film is awfully short. It left me wanting more--which is a good thing, now that I think about it!