Hi Blueash, this film is available on DVD on Amazon. However, it is a region 1 DVD so can't be played in Europe unless you have a region free dvd player. xx
I have just discovered that there is a film which tells the story about the doctor - Dennis Slamon who did the research and development of Herceptin.
This is it https://en.wikipedia.org/wiki/Living_Proof_(film)
If anyone knows where to get it would they please tell me!