- In the film, Victor's home country, Krakozhia, is completely fictitious, similar to the Union of Soviet Socialist Republics.
- The flight schedules displayed on the airport information boards and monitors are all from JFK International Airport.
- Bernie Mack was unable to star in the film due to a conflict of appointments.
- In the first draft of the script, Victor is from Slovenia. This design was opposed by the former Slovenian consul in the United States.
- In the film’s cast and crew subtitles, each person’s name comes from his own autograph.
- The film is the opening film of the 2004 Venice Film Festival.
- The girl with a suitcase that Victor tries to help is played by Steven Spielberg's daughter.
- All the shopping stalls in the Kennedy International Airport in the film are professional salespeople in the real world.
The Terminal behind the scenes gags
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Joe Mulroy: Gupta, relax, would you? He isn't a spy.
Gupta Rajan: How do you know? He could be recording everything we say. A wire in his shirt. A microphone up in his ass.
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Frank Dixon: Do you think this is a game? Do you think I need an excuse to put you back in that cell to keep you there for five years? You go to war with me, and you go to war with the United States of America. And then you'll know when that fight is over why the people of Krakozhia wait in line for cheap toilet paper while Uncle Sam wipes his ass with Charmin two-ply.