Called "Deadly Pursuit" in the UK. Because of the recent massacre in Hungerford, where Micheal Ryan had gone on a shooting rampage killing around dozen people and injuring several others, it was thought to be in bad taste to release a film with "shoot" in the title.
The killer's identity is not revealed until midway through the film. He attempts to evade detection by killing a member of a hiking expedition and taking his place. To keep the audience guessing as to the true identity of the villain, some of the hikers were played by actors known for playing bad guys: notably Clancy Brown, Frederick Coffin, and Andrew Robinson.
The plot of this movie was used in an episode of MacGyver. In season four, episode fifteen, "The Invisible Killer", Mac was trying to unmask an escaped convict on a scenic hike, and it aired only a little over a year after this film was released.
The theatrical trailer features some shots and scenes not used in the final cut. There is a shot of Stantin (Sidney Poitier) looking sheepish as the battery powered socks (which Jonathan throws away) fly past him; Jonathan (Tom Berenger) commenting on how he has never seen frostbite on a black man before while they are sheltering under the snow's surface; and an alternate shot of Steve (Clancy Brown) forcing Harvey (Andrew Robinson) to jump at gunpoint which keeps his identity hidden. Steve's face is also never fully shown in the trailer to maintain the surprise element.
Stantin carries his revolver in a cross draw position, but uses a holster meant for strong-side carry and canted the opposite direction. The holster has a thumb-snap and does not protect the muzzle, thus it would be nearly impossible to present very efficiently, and is likely shown to keep both Stantin and his gun in the same frame. A "pancake" holster, carried on the strong side, just behind the hip would have been more realistic, as most F.B.I. Special Agents carry their firearms this this way.
Knox is carrying a Marlin Model 336 lever action rifle. 35 Remington, 44 Magnum or 444 Marlin were large bore cartridges offered in the 336 and appropriate for someone walking trails in bear country. It is also pictured with a scope, a common modification.
The knife Berenger is seen using is a Gerber BMF Survival Knife and was influenced by the those used by Sylvester Stallone in the Rambo franchise. The canyon scenes where Berenger crosses on the cable to retrieve the cart is the same location used in First Blood (1982).
Stanton says the suspect "used a 9mm automatic". The antagonist is shown with a Colt 1911 normally chambered in .45 ACP. In the 1980s, it would have been extremely rare for a criminal to use one in 9mm, as the guns were very uncommon and notorious for feedway stoppages. However, 9mm 1911s were common as production props due to the stoppage problems experienced with the 1911 when using .45 ACP blanks.
Even though the murderer's identity is kept hidden from the audience - including providing "red herrings" by having known bad-guy actors play several of the hikers - anyone who has seen Highlander (1986) can easily guess which one of them it is on account of the growling voice he uses during the stand-off that sets off the plot. Clancy Brown sounds exactly like that as The Kurgan in that movie.