Movie is strongly architectured with flashbacks and could be understood at first as the story of a pure and almost mythical officer (Wilsdorf). At that level, it is just a good story. Much more interesting are the other characters (Doctor, Captain, Mechanical officer) that have been all fascinated by Wilsdorf. It is a deep human picture of all our weaknesses and dreams. Everybody may find some points in these lifes while Wilsdorf is more an abastract heroe. For French, debates about colonial period and fidelity is also interesting. On top of that, some scenes at sea are great (I checked on a sister ship during my military duty).