1. The passenger plane that appears in the film is similar to a Boeing 767-300, but its cabin interior decoration, layout, etc. are far from the real Boeing 767-300.
2. During the filming of the last scene in the film, Liam Neeson suffered a stroke, but it was not obvious. The director did not reveal this little secret until after the movie was released.
3. The cabin of the model airliner used for shooting is much larger than the actual standard cabin, and the purpose is to match the burly figure of the lead actor Liam Neeson with 1.93 meters.
4. Max is an American in the film, but has an Irish accent. His birthplace is Belfast, Northern Ireland. In reality, even M Neeson was also born in Northern Ireland.
5. The name "Nancy" of the flight attendant in the film is to pay tribute to the 1974 film "Airport1975", and the name of the other flight attendant "Gwen" comes from the 1970 film "Airport".
6. More than 200 extras participated in the filming of the film.
7. Max in the film is wearing the Casio Second Bureau Radio Controlled Watch (CasioWV58A-1AVWaveCeptor).
8. The film is the second collaboration of Liam Neeson with director Zomi Silla and producer Joe Silvo after "Unidentified".
