Joyeux Noel in Wartime

Tonight's message is a call to watch a movie...nothing to do with writing, I know, but everything to do with Christmas and all that we should strive for in our everyday lives.
I watched Joyeux Noel this evening. I'd never heard of it, never seen any reviews. Nothing, and it is the best Christmas movie I have ever seen. It is...real. It's not Hollywood sap, or commercial crap. It's true humanity. I just wished more people cared.
In 1914, during the first Christmas of WWI after everyone had sworn they'd be home for Christmas and the war over, German, French, and Scots (British) troops declared a ceasefire on the lines so that they could mark the special season, the birth of Christ, and return/bury each other's dead.
I'm imagining myself in their place, one day firing on Germans, on the "Kraut's," the next day sharing a bar of chocolate, or attending a service with a priest, or playing a game of cards over a bottle of booze. Imagine seeing the face of the person you're shooting at, learning about their wives, seeing pictures of their families, and knowing that the next day you would be firing at them and ruining their lives forever. Horrible. I just can't fathom it - it breaks my heart. I guess that's why I've always wanted to do my part, why I WOULD (yes, I would!) join the services for my country. Why I would join Doctor's Without Borders as I had always planned to, if only I had been able to attend medical school. It makes me angry that these young soldiers were then reprimanded for "fraternizing" with the enemy, when they were only being human, how a church could condemn a priest who offered a service for all soldiers and not just his own, how a church could kick him off the front and replace him with a man who preaches death and destruction and warps the scriptures to defend the killing of all Germans so that their inherent evil cannot resurface (because, according to the powers that be, Germans are not human). It baffles me that man can be so blind, so mindwashed and unfeeling. I want to show my kids this movie in my Grade 9 class tomorrow, but what breaks my heart the most? They won't care. At all. They'll say, "I hate subtitles," or "this is dumb," because the action scenes have no special effects or there are no familiar actors. They want Elf, or Santa Clause.
Where's the compassion? How do I teach an unfeeling, egotistical generation to care?
Please tell me if you have the solution.