- Fake Nationality:
- Maybe subverted into an Actor Allusion, as Samir Nazhde is played by French (you can hear it) -of Tunisian descent- actor Sami Bouajila, and even though he is Palestinian, Haddad suggests to deport him to Tunis (although there are Palestinians all over the Arab world now).
- Played with: the Lebanese-American agent Frank Haddad is played by Tony Shalhoub, who, although born in America, has Lebanese ancestry (his father Joseph was from Lebanon and immigrated to the US when he was 10, and his mother Helen was a second-generation Lebanese-American). His character immigrated to the US from Lebanon though.
- Life Imitates Art: Three years after the movie came out, 9/11 happened, with many parallels to the film.
- Playing Against Type: Tony Shalhoub, generally known as a goofy sitcom actor, here plays an angry, snarking FBI agent.
Trivia / The Siege