In some ways, Narvik takes inspiration from true events, but there might be some fictional elements added for dramatic effect. Overall, it has a foundation in reality.
It depends on your perspective. Some elements of Narvik are rooted in truth, but for a complete true story representation, there might be some artistic liberties taken for dramatic effect.
The 'Narvik True Story' is likely about the events that took place in Narvik. It could involve historical events, perhaps related to battles, as Narvik was a significant location during World War II. It might also be about the local people, their lives, and how they were affected by the events in that area.
I'm not sure specifically as I haven't read or fully researched it. But generally, it could be about an event, a person's experience, or a series of events that took place in Narvik. It might be a historical account, perhaps related to a battle or significant social development in Narvik.