It’s difficult to write this Last Christmas review because I saw the movie less than 12 hours ago and I’ve already largely forgotten it. Perhaps that’s the intent of this kind of disposable holiday fare—to make for a nice date night during the Christmas season and nothing more—and yet one would expect the film to leave a greater impact given the talent involved. It’s got Paul Feig (Bridesmaids and A Simple Favor) directing a script co-written by Oscar-winning screenwriter Emma Thompson. It’s got great actors in the lead roles. There’s …