Every Picture Tells A Story. Gericault's The Raft of the Medusa

I’m reading a book ‘Keeping an Eye Open’ by Julian Barnes, subtitled ‘Essays on Art’. 

In the first chapter, he writes about this painting by Géricault. 

I’ve never heard of this artist, but the story surrounding this painting is fascinating. 

I’ve found a documentary on this painting on YouTube by my favourite art critic Andrew Graham Dixon. It’s a good one. He looks very young.