Well, get your label-makers fired up, because I'd like to be the first in this thread to say unequivocally that American Sniper is an awful movie.
Totally apart from its problematic politics/general ignorance of its subject matter, Sniper is fundamentally a poorly made, dramatically weak film that fails whether one views it as a fictionalized narrative or as a journalistic biopic.
The lazy production values were a constant distraction - I found the heavy use of cheap, obvious CGI during the battle sequences even more distracting and off-putting than the much-maligned fake baby. The vast majority of the bullet strikes/squibs, blood, and explosions were as obviously digitally fake as the effects in a straight-to-video Expendables ripoff, while an overhead shot from the perspective of a drone looked like a video game outtake. I can usually tolerate Eastwood's rushed, "close enough is good enough" production style, but in a film in which much of the dramatic tension has to come from a visceral identification with the seemingly real danger the protagonist encounters, cutting corners this blatantly and regularly completely took me out of the events onscreen.
The narrative itself has almost no tension, because it's made clear early on that Chris Kyle is a superhero, a rare and noble sheepdog here to protect the many weak sheep from the evil wolves, in the terms of the utterly patronizing metaphor that opens the movie, and which could be read as a subtle parody of the "dicks, pussies, and assholes" speech from Team America if there was any hint that this movie took itself with anything less than the utmost seriousness. He has no discernible flaws, other than that he cares too much about the fellow soldiers he couldn't save and has to find a way past the mildest case of PTSD ever put on screen, which we're told he's even more of a hero for being able to do (primarily by using his status as "Legend" to be a mentor to other wounded vets). There are a few well-done moments that hint at some potential for alternative perspectives on Kyle's life, like
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So, because Sniper fails as a dramatic narrative, and with almost all of what weak and inconsistent thematic content it has done better by other films, most notably The Hurt Locker, the film's one saving grace would be if it depicted a series of really amazing, too-good-to-be-true events that at least partially make up for other weaknesses with some sheer "wow, I can't believe it actually happened like that" power (Unbreakable attempts to rely on this crutch to overcome some weaknesses as well, more successfully). This is where the "journalistic veracity" complaint mentioned above actually becomes valid; if a filmmaker distorts or massages history to tell a better story in service of a compelling movie, that's a forgivable, even laudable decision that at the very least needs to be separated from the quality of the film as a film. If, however, the story being told is only interesting or compelling if its events really happened the way the film depicts them, then questions about the accuracy of those events are totally fair game.
To that end, let me just say that much of American Sniper is a bunch of bullshit. Even if Eastwood was merely portraying Kyle's understanding of events in Iraq by completely walling them off from any context or larger understanding (the larger irresponsibility of which is addressed below), basic factual inconsistencies and improbabilities abound. To pick just one example,
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Finally, I really do try not to be a knee-jerk reactionary progressive (if that phrase even makes sense) when it comes to movies - as I think my consistent defense of Zero Dark Thirty on this board would demonstrate - so I came into the film with as open a mind as I could muster, hoping for at the very least a pro-military war drama on the level of Lone Survivor (far superior even while carrying some similar veracity issues). Like others here, I was excited by the unique quality of the trailers and had heard enough of the initial backlash and backlash-to-the-backlash to be open to either side of the argument. Unfortunately, I was really struck by how accurate Seth Rogen's much-derided comment was: without making any direct comparisons between the armies and leaders their respective protagonists fought for, American Sniper really is basically a modern, full-length version of Nation's Pride from Inglourious Basterds: a celebration of military heroism completely divorced from any context and seemingly designed to allow viewers to ignore anything difficult, controversial, or problematic about the setting and marvel at the Platonic ideal of a patriot forced to kill the enemy in great numbers to protect his country's interests. I don't know that I've ever been on this end of this complaint about a movie before, but it felt irresponsible for Eastwood to, among other things, depict the "enemies" Kyle kills solely as al-Qaeda-affiliated militants,
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The film I kept thinking about while driving home from Sniper was Oliver Stone's JFK, which I would defend to the death as well-made, compelling film and that also happens to have at best a distant relationship with reality; unfortunately, Sniper doesn't even have the excuse of being a good movie to allow one to look past the untruths and lies by omission. Ultimately, however, the biggest failing of American Sniper isn't that it's too politically problematic, but that it's too cheap, ignorant, and uninterested in anything about its subject that might actually be compelling.