[SPOILERS AHEAD] If you had to pick one word to describe Kenneth Lonergan’s new film, it would have to be “real.” Manchester by the Sea takes a brief look into the life of a middle-aged man named Lee Chandler (Casey Affleck), who is racked with tragedy and must return to the site of all his woes—Manchester, Massachusetts—when his brother dies of heart failure and he is left as guardian of his nephew, Patrick (Lucas Hedges). The film revolves around grief and how it is dealt with. It is not, however, a film that you need to bring a box of tissues with you to see. There is no build up…