The movie XXX was directed by whom?
Lone Survivor
, regardless of which role was offered to him. Upon being cast as Kristensen, Bana researched the fallen serviceman and his family. On joining the production of Lone Survivor, Bana stated, ''There are two factors that make this story special, and they are the reasons why I jumped on board. One is the story itself, and two is who chooses to direct a project like this. I knew how involved (Berg) would be and that he would know how to portray SEAL teammates. That was what I wanted to be a part of. The greatest way to honor these guys is to make a great film and have it stand the test of time.`` Bana did not physically prepare for the role. ''My responsibility was really to understand the role of the mission commander and the relevant information with respect with the chain of command and what it means to go in the QRF and the processes involved,`` he explained. ''It was far more important to be the person that was responsible for that part of the story and understand that completely. There's no purpose in me going out and firing an M4 in this case.`` Ali Suliman, who previously collaborated with Berg on the 2007 film The Kingdom, plays Mohammad Gulab, an Afghan villager; Alexander Ludwig plays Navy SEAL