Language And Conflict In the Movies: Rush Hour 3
The character played by Chris Tucker has learned Chinese since Rush Hour 2. Unfortunately for him, the first person with a distinctly Asiatic appearance that he gets to question... speaks only French.
I like movies if they explain something important, after all, it is so much easier to watch a movie than read a book. I always point to Wild River, 196?, as an example of a movie which really deals with eminent domain. I've got several movies which illustrate language issues, I'll bring them up over time.