No, not a movie like "Being John Malkovic."
I thought I'd listen to Arngeir as he told me all about being Dragonborn. It seems there are 2 parts to this:
1) The Voice
2) Dragon Blood
According to Arngeir, Kynareth gave men (Nords only?) "The Voice" at the dawn of time. Later, he says that Akatosh bestows upon the Dragonborn the gift of "Dragon Blood."
So, "The Voice" does not sound like the ability that makes us Dragonborn, but rather the gift of Dragonblood. Is that fairly accurate? Is it the Dragon blood that gives the ability to absorb Dragon Souls?
That would explain why Ulfric is not considered Dragonborn when he shouts down Torygg, nor the Graybeards, either, as they have mastery of "The Voice" already.
Am I on the right track?