As Eve gets up from the cafe table to go to the apartment building, an emergency vehicle is heard in the background. That type of siren is not indigenous to Norway.
Apartment doors in Norway does not have numbers. They instead have door signs with the occupants' names, and you rarely find a door without one. Also, they don't have turning doorknobs. They either have door handles or stationary doorknobs, in the last case the only way to keep the door closed, is to lock it.
Arial cables are seen outside the apartment building. The only cables seen going through the air in Oslo, are street car cables. All other cables, such as electricity, telephone, Internet etc. are dug down in the streets, and the ones seen are clearly not for street cars.
When Kilroy tells Christina of the three possible people who 'Gemini' could be, the first person he suggests is called Harris Waters. His name, however, is displayed incorrectly as "Harris, Waters", with his forename listed as his surname and vice versa.
Tasmania, Australia. Yellow lines on the road appear when Mills is sitting in the buggy. Australia has white road markings. Yellow lines only appear in some Alpine Mountain areas.