The raid happened in the mountains of Svalbard, a Norwegian group of islands situated in the Arctic Ocean. After returning to their camp from a day of shooting, the film crew found that their idyllic hillside hut had been trashed, with the door ripped off its hinges and the inside littered with empty food packets.
According to Håvard Festø, the team's field assistant, the bear had eaten the team’s bacon, marinated steak, chicken, sour cream, yogurt and fruit. Although, it had apparently left all the alcohol and Marmite (definitely not a British polar bear then).
Not too far from the cabin, the polar bear was having a post-lunch nap. They had to use flare guns, which create a loud bang and flash, to frighten the bear without causing harm. Over the next two days, however, the polar bear came back three times.
Maybe it's payback for nature documentary filmmakers interrupting all those mating sessions.