Not a big boxing fan these days. Used to be but it is a sad shadow of it's former self. But i found these two outstanding documentaries of two of the great personalities of a forgot era. The first is the Real Rocky about Chuck "The Bayonne Bleeder" Wepner.
The second is about Sonny Liston who in his day was the Mike Tyson of his era. A mob tough guy and stand over man who famously got knocked down by Clay with a phantom punch.