(CBS News) - While the big change in "Titanic's" upcoming re-release is the addition of a third dimension, a subtler alteration has reportedly been made to the film's stars. No, Leonardo DiCaprio hasn't been digitally replaced with Justin Bieber, we're talking about the stars in the sky, the kind scientists care about.
Scientists like eagle-eyed astrophysicist Neil deGrasse Tyson.
When Tyson watched "Titanic" during its initial release he noted that the star map was wrong for the time and place of the sinking. In this video, unearthed by Moviefone, Tyson says that although the film was "widely marketed as having precisely captured the details of the ship" and even though "we know the day, the time, the longitude...everything" about when and where the ship sank, when Kate Winslet's character looks up at the night sky toward the end of the movie, it is "the wrong sky."
In fact, the left half of the sky was a mirror reflection of the right half, or, as Tyson says: "It was not only wrong, it was lazy."
Tyson sent the film's director - noted perfectionist/deep sea explorer James Cameron - an email Cameron has described as "snarky," according to the Telegraph.
"And with my reputation as a perfectionist," Cameron reportedly said, "I should have known that, and I should have put the right star field in."
And so, for Wednesday's 3D re-release, the stars in the sky in the film will match those one would have seen at 4:20 a.m. on April 15, 1912 from the middle of the Atlantic Ocean. Certainly audiences will notice - those that can make out the star field through tears as Celine Dion wails, anyway.
A mystery few seem even to notice and no one has even followed up on when I mention it.
This isn't the only newsreel film of Titanic. One seems to have been filmed before the collision, but after the departure from Southampton. Part of it shows tugboats helping the Titanic out of its mooring. The tugs apparently have their names painted on their sterns, but their names have been scratched out on the film! You see the tugs, you see the Titanic, but where the tugs' sterns are, you see fluttering, oddly shaped banners of white. No one seems to know why the nams of the tugs have heen scratched out. YouTube has one example of this film, it's entitled, "Titanic 1912 Newsreel (original)". At about 4 minutes 23 seconds into the film. It's not immediately obvious why the names of tugboats used in navigating the Titanic out would be removed from the film, it's not immediately obvious what someone would be wanting to hide.
Personally, my favorite pop-scientist is Douglas Hofstadter.