Trivia: In the restaurant scene near the beginning of the film, the actor playing the waiter accidentally flips the corner of the menu in Steve McQueen's eye, but it was left in the finished film.
Trivia: Even though the US military had a big part in the production of this film they asked the producer (John Wayne) not to credit them because they thought the movie was so pro-military that it bordered on propaganda.
Trivia: The idea of helicopters was not necessarily new in WW2, but effective designs were not made until after the war; there is evidence from some literary sources (one of them being a book named "German Secret Weapons of WW2" or something like that) that the Germans did indeed conduct experiments and designs on this vehicle type.
Trivia: Patrick McGoohan committed himself to appearing in "Ice Station Zebra" whilst he was filming his famous TV series "The Prisoner". However, as is well known, "The Prisoner" went massively overbudget and seriously behind schedule. As a result, McGoohan had to leave filming of "The Prisoner" in late 1967 for several weeks, in order to appear in "Ice Station Zebra". This is the reason why several episodes of "The Prisoner" have McGoohan either absent or only in previously filmed flashbacks and inserts...McGoohan could not be filming both "The Prisoner" at Elstree, and "Ice Station Zebra" in Hollywood at the same time.
Trivia: Vera Miles plays Madelyn Buckman, the mother of Tish Buckman (Katharine Ross). In real life, Miles is only eleven years older than Ross.
Trivia: While Morton's private train plays a key role in the movie, and the train moves several times, the train's engineer and fireman are never shown, nor is any reference ever made to them.