This weekend, American soldiers have once again stepped into harm’s way, as Operation Odyssey Dawn begins in Libya. Coincidentally, we’re also passing through a pop-culture moment of some significance, as a sizable portion of our cultural elite find themselves strongly at odds with audiences over an unexpectedly popular movie, Battle: Los Angeles. Pop-culture criticism can be a tricky affair. Critics often praise a film that audiences ignore, or vice versa. What’s interesting in this case is how profound the disconnect has become. Battle: LA passed the $60 million mark at the box office this weekend, but many critics don’t just...