"A Mighty heart" is a "realistic" movie, that tells a thru story, based on real events and including real people of real life. The movie is actually an adaption of Mariane Pearl's diary, where she tells the story of her husband, the journalist Daniel Pearl, kidnapped and killed by terrorists in Pakistan in 2002. The main question for the director Michael Witterbottom was to find the right representation of the reality he depicts. And the choices he made for the movie are both logical and disturbing.
Mariane Pearl, as her husband, is a journalist, and the first form the movie adopts in order to deal with the complex reality of the world is a journalistic style, with a camera always on the move. It really looks like a war reportage for television, that sticks to the events and to the characters in an "emergency"'s style. But surprisingly, this realistic aesthetic also reminds a famous fiction's show about terrorism : "24". And it's especially striking when it comes to action or interrogations (read torture...) scenes, with a Pakistan's Jack Bauer's style cop. If the goals of the directors are not the same ("24" only wants to be entertaining, "A Mighty Heart wants to be more...), and the depiction of terrorism differs ("24" is a show about fear, "A mighty heart" avoids a fear treatment), it's the same need to show every aspects of a situation that creates this similarities in the urge of the mise en scene.
And this depiction of reality, that gives an objectivity feeling to the movie, is a little bit strange when you come to consider that the movie is firstly an individually and personal point of view on a situation. An between the two opposite points of view (the subjective story of Mariane Pearl, and the objectivity of the "24" reality representation), Witterbottom seems to have some difficulty to choose. It really gives to the movie an annoying ambiguous point of view, where you're unable to really understand the nature of the images you're watching. And that's an important question in this kind of movie.
This ambiguity is quite surprising, for Winterbottom seemed to have chosen his style in his previous movies. For a completely different subject (the musical English scene from the Punk to the Techno in Manchester) in "24 Hours Party People", he clearly made his the Ford's sentence about reality that you find in "The Man Who Shot Liberty Valence" : "When the legend becomes fact, print the legend". And this lack of a strong orientation in "A Mighty Heart" also gives the unpleasant feeling to watch the spectacle of a life more than a testimony about it, and to be an intruder in Mariane Pearl's intimacy, even if the movie claims the contrary.
