Revealing mistake: When Celine is hanging out with her friends, there is a man sitting on her left who is shown smoking a cigarette several times throughout the scene. Whenever he smokes the cigarette, it always stays the same length and no smoke is shown coming out of his mouth, revealing that the man isn't actually smoking it. (00:54:30)
Revealing mistake: When Julie begins running up the large flight of steps, a man can be seen standing on a balcony to the right of shot. He can be seen watching Julie run up the stairs and then immediately turns his head to his left to glance at the camera. (00:09:20)
Revealing mistake: Julie walks up a small flight of stairs and begins to walk over to a bench. Whilst she is walking to the bench after walking up the steps, a red car can be seen driving past in the background, and the driver is shown looking at the camera when the car passes. (00:06:08)
Revealing mistake: Whilst being followed by Celine, Julie walks up a small flight of steps. When this happens, a blue car can be seen turning around a corner and driving past the camera. Just as Julie walks into frame, the driver of the blue car can be seen looking at the camera just as he drives past it. (00:05:58)
