There are several different ways of defining underrated. Did reviewers not give a certain movie its fair shake, or did a critical darling simply fall through the box-office cracks? Whatever the reason may be, here are more than 20 movies from 2015 that deserve a second (or, if you've yet to see them, first) look. Though hindsight and the inexorable march of time may reveal why some of these didn't succeed as they might have, one burning question remains unanswered: Seriously, why did so few people like Blackhat? ?Michael Nordine