In the final scene, Saga is traveling from Denmark to Sweden in the eastbound lane. But the final shot shows her distinct green Porsche traveling west, towards Denmark.
When Martin arrives at Copenhagen Central Station the weather is gray and unbroken overcast. When the train departs mere minutes later it is bright sunshine, with crisp shadows.
The trains on the Øresund Bridge runs on the right side track, making the eastbound track the south one. When Jens stops the train - and he, Martin and the hostage gets off - they are on the left/north side of the train. They then arrive under the bridge by a north side staircase, without having crossed the westbound track.
At Copenhagen Central Station Jens tells Martin to go to track 2 and board a train departing for Sweden. Track 2 serves arrivals from - not departures to - Sweden. The overhead view then shows the train departing on track 5, which is accurate for trains heading towards the bridge.
Martin needlessly racks the slide on his automatic pistol after already firing a round about a minute earlier in the same scene.
On the bridge, the hostage situation takes place under the train deck at the eastern bridge pylons. Saga is first shown to stop at a pylon on the south side which is correct since she is coming from the west. These pylons contain internal stairs for easy access to and from the train deck. The next shot shows her instead descending an external evacuation staircase on the north side of the bridge, almost 850 meters east from the hostage situation; this staircase is the second from the eastern pylons. Then she is seen moving east along the northern side of the train deck, but now she is on a straight portion of the bridge, which is a jump almost three kilometers to the *west*. Finally she arrives under the train deck by a southern staircase.