While Hoop and Tyrone are arguing outside the car, there is a shot of Ana nervously dancing while listening to the music in the passenger seat. She hits the windscreen and it cracks; however, in the next shot of her, the cracks have disappeared.
When they hit the heavy traffic, Jack puts his red light on the roof. It then disappears for the rest of the sequence.
Tyrone and Hoop are sitting in the car in torrential rain, and there are clear lines of sight between the camera, the mirrors and the actors' faces with no rain on the windows. When the camera angle changes to a side view, rain can be seen running down the side windows.
When Hoop gets out of the car to "check the spare wheel", he opens the trunk. When Tyrone gets out to look what's wrong, the shot from inside the car shows that the trunk isn't open. A moment later, Tyrone yells to Erin to shut off the music, and then he shuts the trunk.
The most likely cause of a diabetic coma that came on as fast as the one Jack had is severe diabetic hypoglycemia (low blood sugar). Erin did the right thing originally by trying to give him an orange; she needed to raise his blood sugar. When she went to his home, she found his Insulin. Giving him insulin would only have made him worse. A coma caused by high blood sugar would have been a lot longer in coming.
Tyrone and Hoop are sitting in the car in torrential rain; it is seen bouncing off the hood. However, when their faces are seen in the side mirrors, there is no rain on the mirrors' glass. No rain strikes the mirrors' frames.
Sudbury, Ontario does not have an Immigration office at the boarder of the United States of America, because it is located in Northern Ontario - far away from any bordering cities or boundaries near the USA.