People like stories, it is one of the ways we learn. The story of Buddha’s life is an archetype of a journey of a spiritual seeker. But it is means to an end not an end. In my view journey is just as important as a destination.
As Dalai Lama says in the documentary about Buddha’s life story everyone wants happiness. Buddha acts as a teacher but he surely ensures you are your own master. He calls himself as tatagatha the awakened one the one who shows the way. It’s up to us to walk the way.
Hence Buddha said whoever sees me sees the teaching and whoever sees the teaching sees me. In the message of the Buddha’s life story has lot to teach us and it’s a fun way to learn his teaching and his quest for finding the truth is still relevant to us even in these modern times.
Buddha himself says my teaching is not a philosophy. It is the result of direct experience. My teaching is a means of practice, not something to hold onto or worship.
My teaching is like a raft used to cross the river.
These teachings are like a raft, to be abandoned once you have crossed the flood. Since you should abandon even good states of mind generated by these teachings, How much more so should you abandon bad states of mind!
Through his life story and the great compassion he had for the suffering we can understand how revolutionary his ideas were ahead of his times - accepting spiritual seekers from both men and women all castes status in the society into sangha and encouraging his followers to take the message of dharma to all corners of the country including far away lands and cultures in exchange for alms.
This documentary also touched upon some basics of his teachings the middle way, four noble truths, eightfold path and dependent origination.
Dependent Origination is the teaching (that life) is not the mere play of blind chance, but has an existence that is dependent upon conditions. That, precisely with the removal of these conditions, those things that have arisen in dependence upon them-thus also all suffering-must perforce disappear and cease to be.
The documentary shows the birth, nirvana (enlightenment) and parinirvana (death) of Buddha and upon his passing away how he asked his followers to follow the dharma as their teacher and continue to encourage everyone to realize their own Buddhahood nature.
Think his life story gives enough background and a good starting point to dive deep into his teachings as documented in Theravāda (School of the Elders) and Mahāyāna (Great Vehicle) which are not covered in the documentary.
BTW you all know later some 700 years after the Buddha our Telugu bidda Nagarjuna built his Madhyamaka philosophy of emptiness on top of the Buddha’s dependent origination.