Its one of the dictation movie.it really gives us some interesting & some not knowing information through such a bio-film about captain cool( Dhoni) .And I think its a symbol of struggle and hardwork.one the other hand sushant plays the role of MSD as well.As it is a bio-film , its all about cycle of failure and the movie gives us a short message of striking back in life in spite of worse time.And we should learn that.