The killing of Osama bin Laden came after what's been called the greatest manhunt in history.<br/> <br />That story is being told in the new film "Zero Dark Thirty", which has premiered in Los Angeles.<br/> <br />It includes one of the most controversial parts of the hunt for the Al Qaeda leader, the use of torture.<br/> <br />Jessica Chastain stars as a CIA agent alongside Australian actor Jason Clarke.<br/> <br />(SOUNDBITE) Jason Clarke, Actor, saying (English):<br/> <br />"I think all those facts are already out there. It's already there so I don't think it's controversial in the fact that it's been debated for a long, long time. Those scenes were very hard to shoot."<br/> <br />(SOUNDBITE) Jessica Chastain, Actor, saying (English):<br/> <br />"To not include scenes of torture would be to be lying about what happened and would make a watered down Hollywood movie. They did not want to do that. They wanted to show everything that's involved."<br/> <br />"Zero Dark Thirty" is directed by Kathryn Bigelow, who won a Best Picture Oscar for Iraq War thriller "Hurt Locker".<br/> <br />Her latest project is considered a top contender to take the award again.<br/> <br />Uncomfortable as it may seem to many, the film argues that bin Laden would never have been caught without the use of torture.<br/> <br />It opens in the United States on December 19, with wider release on January 11.
