Continuity: Rahim sees the picture of Soraya and puts it down on the table. In the next scene, the picture is not seen anymore.
Revealing mistakes: The last scene shows the kites flying in a strong wind, but there is none at ground level (note her hair), nor matching chop on the water, and the glimpse of a sailboat suggests a breeze from the another direction.
Factual errors: In the scene at the stadium just before the Talib official gives his speech there is a soccer game going on and most of the players are wearing shorts. The Taliban did not allow shorts or revealing clothes of any kind to be worn, even at an athletic event. They imprisoned and persecuted members of visiting Pakistani teams for wearing shorts.