There’s little use in trying to disguise my frustration with Tom Hooper’s sluggish interpretation of Les Misérables, though in the interest of full disclosure I should acknowledge immediately that I have never seen the musical on which it is based. (And it’s been years since I read Victor Hugo’s original novel.) Put another way, I have no personal ideal of what Les Mis should be, so as far as it concerned me, Hooper– who successfully directed a strong cast of performers to Oscar gold two years ago with The King’s Speech— had the floor here. A shame, then, that he squanders the opportunity by muting his strengths as a filmmaker…