'Machine Gun Preacher'

Actress Zoe Saldana poses at the premiere of the film 'Machine Gun Preacher' at the Samuel Goldwyn theatre in California on September 21, 2011.  (Reuters/Mario Anzuoni)

Cast member Michelle Monaghan poses at the premiere of the movie 'Machine Gun Preacher' at the Samuel Goldwyn theatre in Beverly Hills, California on September 21, 2011. The movie opens in the U.S. on September 23.  (Reuters/Mario Anzuoni)

Cast member Gerard Butler poses at the premiere ofthe movie 'Machine Gun Preacher' in California on September 21, 2011.  (Reuters/Mario Anzuoni)

Cast member Kathy Baker arrives at the premiere of the film 'Machine Gun Preacher' in Beverly Hills, California on Wednesday, Sept. 21, 2011. 'Machine Gun Preacher' opens in theaters Sept. 23, 2011. (AP/Matt Sayles)

Cast member Madeline Carroll arrives at the premiere of the film 'Machine Gun Preacher' in Beverly Hills, California. (AP/Matt Sayles)

Cast member Michelle Monaghan poses at the premiere of the film 'Machine Gun Preacher' in California on September 21, 2011.  (Reuters/Mario Anzuoni)

Actress Zoe Saldana poses at the premiere of the movie 'Machine Gun Preacher' at the Samuel Goldwyn theatre in Beverly Hills, California.  (Reuters/Mario Anzuoni )

Cast member Gerard Butler and Sam Childers, whose life is the inspiration for the film and is portrayed by Butler, pose together at the premiere of the film 'Machine Gun Preacher' in California on Wednesday, Sept. 21, 2011.  (AP/Matt Sayles)

Cast members Gerard Butler and Michelle Monaghan pose with Sam Childers at the premiere of the movie 'Machine Gun Preacher' in California on September 21, 2011.  (Reuters/Mario Anzuoni)