Where did the footage come from?

This blog talks about how recently, back in August, Reuters made a report of Russian submarines planting the planting their flag on the seabed underneath the North Pole. They had a whole article with pictures and video. But, the problem was pointed out by a 13 year old Finnish school boy, that the footage released by Reuters was very similar to that of what is shown in the movie Titanic, which was taken by two Finnish submersibles. It is just another one of the things that makes you think and question the credibility of even such major news organizations such as Reuters. Just something to think about.