Bill Condon’s “Beauty and the Beast” stands firmly on its own merit. True to Disney’s recent trajectory, its goal is to “reimagine” a previous animated classic into the live-action medium for a new era and audience. Unlike the recent treatments of “Cinderella” and “Malificent,” this “Beauty and the Beast” stays a full-blown musical. Imitation, emulation, and homage are all part of that process, but so is reappraisal and reinterpretation. Those later two actions are what drive this new fantasy film to soaring and successful heights.