Conversation so far:
When was the first film Jacques Cousteau made?
Jacques-Yves Cousteau and Marcel Ichac took the first ex-aequo prize of the Congress of Documentary Film in 1943, for Par dix-huit mètres de fond.

Question: What was special about this film that it won an award?
Self-contained rewrite: What was special about the film Par dix-huit mètres de fond that it won an award?