Knives Out is one of the best films of 2019 for many, many reasons. It’s supremely entertaining, insanely smart, and incredibly well-acted, but really all of the superlatives I could heap on this whodunit can be summed up by saying it is tremendously well-made. Writer/director Rian Johnson knows what he’s doing, and he’s honed his craft over five feature films, each entirely different from the last, and a vital part of all but one of those films has been his relationship with his composer Nathan Johnson. Nathan and Rian grew up making movies together (…