False constellations
Renowned astrophysicist Neil DeGrasse Tyson found this specific plot hole. After seeing the movie, he brought up the fact that, given their position, the constellations we see in the movie do not match what the Titanic passengers would have seen in real life. He then gave Cameron the right version to fix this error before the 3D version of the film was released, though we doubt many people were aware of it at the time.
False Constellations
Multiple CGI mistakes
Cameron clearly had to employ some computer-generated imagery (CGI) for some of the more intricate scenes in the film, even though he wanted to use as many real effects as possible. This led to a wide range of issues, such as unrealistic-looking shadows, things that appear and vanish from the ship’s deck, and pipes that alter shape throughout the film. That they weren’t left on the floor of the editing room is still a problem, but that is the risk associated with employing computer-generated imagery in movies, particularly in the 1990s.
Multiple CGI Mistakes
