When Boro picks the spaghetti noodle out of the pot, she's holding the noodle in the middle. When the camera shot switches to the back of her head as she feeds the noodle to Lisa, she's holding the noodle at the end.
When Mary watches the short film, her reflection can be seen in the TV. She says "What the F***?" at one point, but her lips do not move.
At 34:54- James doesn't notice there is someone standing at the end of the hallway.