When the girl is pushing Arash home on the skateboard, the clicking of the wheels do not match the passage of the wheels over the sidewalk cracks.
About 10 minutes, Arash is shown trimming a hedge. However, he is using the wrong tool. He should be using (long-bladed) hedge clippers; in fact he is using "loppers". These are normally used for cutting small branches (1"-2" diameter), not leaves.
Although the movie is set in the Iranian ghost-town Bad City. Two locomotives from the California area are seen at the power plant after The Girl gets her ears pierced. Two engines, one marked CEFX 3048 and one marked Railink RLK 2121 are seen pulling some GATX corporation cars. CEFX 3048's and RLK 2121's normal area of operations would be in California.