When Cara [Delevingne] and Dane [DeHaan] arrived, I told their agent, "They need to know all this." I gave them the 600 pages. I said, "You have to learn everything. You're a cop. You need to know the names." I don't want him, when he meets an alien to go, "Whoa" like this. I want him to know if this guy is peaceful.
![When Cara [Delevingne] and Dane [DeHaan] arrived, I told their agent, They need to know all this. I gave them the 600 pages. I said, You have to learn everything. You're a cop. You need to know the names. I don't want](http://cdn.quoteddaily.com/images/luc-besson/when-cara-delevingne-and-dane-dehaan-arrived-i-told-their-agent-they-need-to-know-all-this-i-gave-them.jpg)