The production ran into a problem with the streetlights of Iqaluit and Apex during filming in Nunavut. The streetlights in these locations are sodium-based and cast an unusual orange-green hue, especially when captured on camera. The production asked the Qulliq Energy Corporation of Nunavut for permission to turn off 50 lights for filming, but was told it would cost at least $22,500 for turning off just 15 lights and would cost much more to turn off the full 50 lights, something the production had not expected and therefore had not allocated any of their production budget for. This led the production to many discussions over several months with the Iqaluit City Council for assistance in turning off the lights.
Nunavut vehicle registration plates (such as the one on the back of Roman's blue pickup truck) are in fact in the shape of a polar bear.
D.E.W. line sites (short for Distant Early Warning) were a series of radar stations in northern Canada and Alaska intended to warn of approaching Soviet bombers on polar circle routes. Almost all have been deactivated, and some have been rebuilt into Northern Warning System sites.
The yellow and black aircraft at the airport is a de Havilland Canada DHC-6 Twin Otter, which is often used for Arctic routes on because of its short takeoff and landing (STOL) capabilities in addition to being able to operate out of rough airstrips. The aircraft itself (registration "C-GOGA") at one point had pontoon landing gear and was used as a float plane several years before it appeared here and is operated by the Province of Ontario Ministry of Natural Resources.