TIL that when filming the movie Titanic they only built the port side of the ship. Scenes showing the starboard side were flipped in post production. As a result of this everything on the starboard side of the ship, from lettering to the buttons on costumes, had to be backwards during filming.

https://en.wikipedia.org/wiki/Titanic_%281997_film%29#Production



Submitted February 01, 2015 at 05:33AM by rob79 http://www.reddit.com/r/todayilearned/comments/2ucu8d/til_that_when_filming_the_movie_titanic_they_only/