"Flawed" is a word movie critics use more often than jewelers. They have looked into the heart of a sparkling gem and found an imperfection. Every movie should be perfect, and on such grounds, "Prime" is flawed. Its flaw is that it employs an Idiot Plot in a story that is too serious to support it. I can forgive and even embrace an Idiot Plot in its proper place (consider Astaire and Rogers in "Top Hat"). But when the characters have depth and their decisions have consequences, I grow restless when their misunderstandings could be ended by words that the screenplay refuses to allow them to utter.