Continuity mistake: When the mosquito net is being put by the dead man's bed, the shoes on the floor keep changing position between shots.
Continuity mistake: Heading for the costume party, the blood splatter on the window changes size and looks between shots.
Continuity mistake: When Jim's mom kisses him goodnight, his father turns around to leave twice.
Continuity mistake: When Jim is in bed talking to his mother about God, his left hand is either resting by his head or down by his waist, depending on the angle.
Continuity mistake: When Jim opens the fridge the cheese changes positions between shots.
Continuity mistake: When Jim's car approaches the beggar on the sidewalk, in the wide angle Jim is sitting on the far right. In the close-up he is sitting on the far left.
Continuity mistake: Jim passes twice by the same part of the Gone with the Wind poster.
Continuity mistake: When heading for the costume party, when Jim leans to see the crowd, his hand is on/off the car's window.
Chosen answer: The first time, Jim says "Nanika no machigai desu. Bokutachi wa minna tomodachi desu yone. Senso no sei desu." This roughly translates to "There has been some sort of mistake. We are all friends aren't we? It is the war's fault." The second time, Jim only says "Nanika no machigai desu. Bokutachi wa minna..." and then gets pushed aside. "There has been a mistake, we are all...". I hope that helps.