Footage of the satellite Thanatos is taken from the James Bond film Agente 007 - Una cascata di diamanti (1971)
Battle scenes from the beginning of the movie that feature Intruder bombers attacking a power plant and ammunition depot are taken from L'ultimo attacco (1991).
The USS Normandy set was previously used to depict a World War II-era submarine in Giù le mani dal mio periscopio (1996).
The scenes where Mitchell takes his daughter flying in the mountains look like they were taken from footage shots for L'aquila d'acciaio (1986).