Jacqueline Coley talked to Luc Besson, writer/director of Valerian and the City of a Thousand Planets, about the casting of Rihanna as Bubble, and who was his second choice for the role. Then Besson revealed how many years it took to storyboard the movie, and what influence Avatar had on the making of his film. Also, we spoke to Dane DeHaan and Cara Delevingne about the moment they realized the were actually in a Luc Besson film. Watch!