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Professional photographer Antoine d'Agata took the photos used in this film. Marina Foïs, who plays Sarah Exben in the film, had a postcard of Antoine d'Agata's work. She showed the postcard to the director, Éric Lartigau, who is also her husband.

As Paul watches from the shore, the sound and light from the explosion of his sailboat (on the horizon), reach him nearly simultaneously. At the height Paul was sitting, the horizon was roughly 5 miles away and the sound would take over 20 seconds to reach him, while the light would reach him almost instantly.