Toward the end of the film, the bomb's timer shows 15 seconds until detonation. Yoko and Chris exchange several lines of dialogue and when the timer is shown again, there is suddenly 20 seconds left until detonation.
When Yoko reaches out of the cab to take something from Sara, her hand is bandaged and the sleeve of her outfit is grey. However, when the camera switches to a long shot, her hand is now unbandaged and her sleeve is dark black.