Nearly eight decades after the animated original, Tim Burton’s live action Dumbo (C+) has flown onto the scene again, and the pachyderm protagonist remains a charming silent star, no matter what’s going on in the peanut galleries around him. Disney executives appear to operate under the premise that, unlike elephants, moviegoers sometimes forget, so there’s liberty to color in some detail around the original 64-minute cartoon’s plot for those with only a hint of familiarity about the circus-set story. Burton adds generous dollops of fussiness around what was formerly a pretty simple storyline about a misfit animal who finds his big ears actually enable him to fly and become a sensational performer. The human actors including Colin Farrell, Danny DeVito, Michael Keaton and Eva Green have very little to do in underwritten roles. Characteristic of all but about a half dozen of Burton’s films is his propensity to deliver style over substance or story, and this entry comes up short on all of those metrics. The art direction and costumes are quite lovely, and there are some nice homage and heartstrings moments, but largely it’s a mediocre show at the multiplex.