James Cameron's epic 1997 movie "Titanic" is about to be re-released and re-packaged in a 3D presentation to commemorate the 100th anniversary of the sinking of the ocean liner on April 15, 1912. Although few changes have been made to the movie itself, there is one tweak that will impress astronomers.

Spurred on by a "snarky" message from astrophysicist and outspoken science communicator Neil deGrasse Tyson, Cameron has addressed Tyson's criticism that the incorrect star field was used during one of the film's most famous scenes....

"[W]ith my reputation as a perfectionist," [Cameron said,] "I should have known that and I should have put the right star field in. So I said 'All right, send me the right stars for that exact time and I'll put it in the movie.'"...