Interesting facts from me? Let's see
The Polar Express isn't a real train, but the locomotive that was pulling it in the movie is very real:
Locomotive #1225 was built in the 1940s for the Pere Marquette Railroad in Michigan, and was one of about twenty or so "Berkshire" type locomotives (named after Berkshire Mountains in New York). She spent most of her life hauling freight trains from Chicago to Detroit, Michigan, by way of Grand Rapids. So the story goes, #1225 was sold to a scrapyard in the 1950s, along with other members of it's type, but the owner of the scrapyard saved it because it's number is the same date as Christmas Day (12-25). The locomotive was eventually donated to the city of Owasso, Michigan, and was put on display at the University. In the 1980s, the Steam Railroading Institute was formed, and they began to restore the locomotive back to operation. #1225 ran under her own power again in the late 1980s, and since then, has made a few short distance trips around the Eastern United States. In 2005, when they were making the Polar Express movie, the movie studio decided to base the train in the movie around the real 1225. The model in the movie is based very closely on it, and a lot of the train sounds that you hear in the movie are real sounds recorded off of 1225.
In recent years, 1225 has stayed relatively close to home, but it is more than just a movie star. It is a very real piece of history for the State of Michigan, as it is one of the few surviving locomotives from the Pere Marquette Railroad.