Depardieu had flown into France on Sunday from Romania, where he had become seriously ill whilst making a film.
Director Alan Corneau had directed both father and son in the 1991 movie Tous les Matins du Monde (All the Mornings of the World), and it was the debut performance for the big screen of the younger of the two actors.
In 1996, Guillaume Depardieu was awarded the most promising young actor prize at the Cesar awards, which are France's version of the Academy Awards, and he received the gong for his part in the film Les Apprentis (The Apprentices).
However, when he was a lot younger Guillaume Depardieu had had drugs and alcohol problems and had fallen into trouble with the law on several occasions.
In 2003, Depardieu had to have his right leg amputated following years of chronic trouble after a motorbike crash back in 1996.
