Congrats on the wedding! Walt Disney World is a great place for a honeymoon.
The movies in World Showcase countries of Epcot are very interesting. As far as length goes, Reflections of China in the China pavilion is 14 minutes long, Impressions of France in the France pavilion is 18 minutes long, and O Canada in the Canada pavilion is 18 minutes long.
The movie in Norway is five minutes long. You can only get to the movie after you've been on the Maelstrom ride. (Which is also about 4 minutes long and is a favorite of mine, but not a favorite of my daughter's. You can read more about this
HERE.) I have to tell you that while the other World Showcase films are beautiful and panoramic, the Norway film is much less interesting. You will find that the vast majority of guests who experience the Maelstrom simply walk through the film auditorium and right out the exit. You are not obligated to stay and watch the film after the ride.
I wish you many happy trips to WDW together :-)