Just went over the scenes on the Blu-Ray. You'll need someone with quite a bit of After Effects prowess. Even where it's not obvious, there are little things that need to be done, like adding the silhouettes of those massive background buildings in the Kirk and George as kids scene. You would also need to change Kirk's line "Hey Johnny" in the finished film to "Hey George" possibly using dialogue from another child actor in some other movie. The location titles on Rura Penthe would have to be cropped out and then remade to match the rest of the movie (might be wrong on this one). The short scene where the Klingons capture the Narada is almost unusable because they all speak in Romulan, and they do that nowhere else in the movie.