The War Within is a 2005 American political drama film directed by Joseph Castelo, who wrote the screenplay with Ayad Akhtar and Tom Glynn.

The film stars Akhtar as Hassan, a Pakistani engineering student who is apprehended by Western intelligence services for suspected terrorist activities.

The War Within is the story of Hassan, a Pakistani engineering student in Paris, who is apprehended by American intelligence services for suspected terrorist activities.

After his interrogation, Hassan undergoes a radical transformation and embarks upon a terrorist mission, surreptitiously entering the United States to join a cell based in New York City.

To go forward and carry out his own attack, Hassan takes advantage of Sayeed's generosity while plotting his strategy and amassing materials to create explosives.