Director Gil Kenan's work on "Poltergeist" is, like his work on "City Of Ember" and "Monster House," smart and focused and technically adept. He has done about as good a job as anyone would have done with David Lindsay-Abaire's screenplay based on the 1982 film, and the same is true of the cast. Sam Rockwell, Rosemarie DeWitt, Jared Harris, and Jane Adams are all very good at what they do. The various visual effects houses and tech departments on the film all did what they were hired to do, and taken as a whole, "Poltergeist" is professional and slick and entirely fine.
It's also unnecessary in every way.