**I just looked on IMDb and found out that Snow Day is not the movie I'm thinking of. Snow Day is about a dinosaur trying to save himself from extinction. I did not hear a story about this on This American Life. The movie I'm thinking of is about kids traveling alone who get stranded in the airport overnight. What movie is that?
***It's Unaccompanied Minors. That's the name of the movie. Thanks Annie.