Desc: Solar Impulse: Point de non retour: Directed by Eric Beaufils, Mathieu Czernichow, Henri de Gerlache. With André Borschberg, Bertrand Piccard. Five years ago, in 2016, Bertrand Piccard and André Borschberg flew around the world without fuel, thanks to the Sun's energy alone, aboard the Solar Impulse 2 solar plane. For its 5th anniversary, this film retraces this exceptional trip.