Trivia: When the scene where the cow is blown up was threatened to be cut due to money constrictions George Clooney paid for the effect out of his own pocket feeling it important to the scene. He was right, the scene was wildly popular with audiences. (Source George Clooney Biography at http://www.tiscali.co.uk/entertainment/film/biographies/george_clooney_biog/5).
Trivia: "Mark" in the film is in reality Mike Coburn, who wrote his own account of Bravo Two Zero. Another writer and ex-SAS, Michael Asher (in "The real Bravo Two Zero") travelled to the area of events and found a different truth than in "McNab's" book. For example that Andy McNab is not his real name, that the cab was not a New York cab but a Toyota Crown and that there is actually no evidence that the patrol ever got into any big fire fights at all. Names and cars are minor discrepancies but the fights are way off what could be called "real events". The film is rather true to the book by "McNab" but not all true to the real events as told by other members and fact finders.