Indian or ஹிந்து or ஹிந்து mythology suggests 7 ஜன்மம்

Indian or ஹிந்து or ஹிந்து mythology suggests 7 ஜன்மம்

According to Hinduism we are taught and made aware that we as a human being we go through seven janmas.

Now, why aren't our Epics of great Gods or king's aren't able to transcend and tell the stories of the hero or avatars across all 7 ஜன்மம் or janmas.

How many of us have watched the Movie series Bourne Identity, Borne Supremacy, Bourne Ultimatum and Bourne Legacy.,?

Does this movie transcend the ஜன்மம் of the hero (Bourne)?

If so, they have told the story till 4 janmas and when are remaining three movies are going to come? 

Do the characters or hero become great or  good after their 6 janmas are completed or in their 7th ஜன்ம.?  Is the same for everyone?

In my view a person is always good from inside it's us the society, environment, leaders who make us or break us.  Even otherwise we are already gifted as a person, it's just that society takes a long time to accept as you are... In particular vested interest always hide you and your personality traits.