Northwest vs Southwest Sun

Since we know the path of the real Titanic, the angle of the sun in the film says a lot about the attention to detail of the filmmakers. For the most part, they were on the money. However, there are some scenes, such as the disgusting deck-spitting scene, that tells a much different story. In this scene, it’s before dinner, and Jack and Rose are spitting over the deck like neanderthals. We know they’re on the port side of the ship and we can see the sun setting, pretty much directly in front of them. This means that the ship is traveling northwest, which is strange because the real Titanic was traveling southwest.