A very simple, easy to spot slipup where someone in the movie crew cut corners to save time. In the opening credits, the movie title is spelled out by one of those airport signs that go "flicka flicka flicka" as they flip through letters to write something. On any of those letter boxes, you'll notice the same three letters going by over and over. True, you may find the same thing in real life... but these three letters are consecutive in the alphabet, like T,U,V. Not very useful for a real airport sign.. but for whomever is making the sign, taking letters off the stack in the order they came in is very easy, indeed.

For an easier spotting, try looking at the boxes around the words "The Terminal;" they keep flipping.