Factual error: At the very beginning Adam is jogging in the Stanley Park in Vancouver, then moments later he is in the middle of Seattle.
Audio problem: When Katherine gives Adam her cell phone number and tells him that it's for emergencies if he needs someone to talk to, the camera switches to a side view where her lips are moving out of sync with the audio.
Continuity mistake: In the scene where Adam and his parents are in the Doctor's office, after his mother states that she doesn't like the lady behind the desk, she gets up to look at a picture on the wall. Her hair is tucked in her jacket. In the next shot, her hair is back out.