Errors in geography: A panning shot of Washington DC later crosses the Potomac, showing the Rossyln part of Northern Virginia. A building obviously in Virginia ends the scene, with text that mentions the building as a special operations office of the FBI in "Washington, DC."
Continuity: When Samir parks the SUV at the apartment complex on the street next to the basketball game, the driver's side front window is all the way down. When the police following him reach it, the window is completely up.
Errors made by characters (possibly deliberate errors by the filmmakers): When the FBI agent is talking to Deirdre Horn in the restaurant, a menu sign in the background lists an item as "chicken diner'. It should be "chicken dinner".
Revealing mistakes: During Samir and Carter's first conversation, very few drops are visible hitting either them or the car next to them during a heavy rainstorm.
Factual errors: At the start of the movie, Samir is praying on the left side of his father. He should be praying on the right.
Continuity: In the prison yard when Samir is supposedly praying he ignores the guy threatening him and then when Omar comes in he's still in the prayer position but when the other guys leave he just walks away with Omar not completing his prayer.
Factual errors: In the first prison scene, this is supposedly set in Yemen. When the inmates start saying their prayers, they do so in the direction of the sun. When in Yemen looking at the sun, you are facing south, while the prayers should be in the direction of Mekka - which is north of Yemen.
Revealing mistakes: During the scenes in Yemen, soldiers and terrorists are not talking in Yemen accent, instead most of them are talking in (Moroccan) accent. In other scenes they switch from classic Arabic dialect to Moroccan accent again.