Other mistake: When Franco proposes Yukiko (proposes her to leave that dumpy tavern behind, that is), in the first shot you can see inside through the door all the way to the back wall, meaning that they forgot to put in the bar counter and shelves, which reappear later in the same scene. (00:09:10)
Other mistake: During Yukiko's song the camera pans across the pictures of the old team. The plaque in memory of the deceased member says "Chizuru Steavens", which just does not sound right. And in fact, when it cuts to a close-up, the last name is fixed and the woman is now Chizuru Stevens. (00:07:50)