Around the 85 minute mark, the characters are talking while on a train or trolley. While not impossible, it's rather odd that the wind is blowing side-to-side inside the train despite an open window at the front. Typically, if you're on a real train with a real window at the front of the train, no matter the wind coming in from the sides, you'll have more wind blowing front-to-back simply from the motion of the train.
At one point, there is a man playing a tune on a harmonica that needs two people with harmonicas to play.