They are doing a rather large push to use the language in everyday things and movies is one of those things. If the next generation learns it at a young age it will be preserved. Language is an important part of any culture, one of the most basic building blocks to understand what is important.
note: to those wondering about modern terms - the language isn't dead and new terms are created. This is sometimes done by adding words together (the Dakota word for automobile is long and painful) or adding a suffix / prefix (well, computer for an English example).
I would love to see your source on this statement, because I believe it to be false.
Also, there is plenty of diesel being run in the winter in places like ND, you just use the winter formulation and don't use pure bio-diesel. It does take more battery to start then a regular gas engine. On the other hand, hydrogen has serious problems with cold weather (Honda's engineers pointed this out on one of the weekly news programs).
Well, it did last 10 years with ~267,000 miles. It wasn't a great car, but it did ok. I learned to hate the dealership enough that I wouldn't buy another car from them, and the four recalls were a little much. Some of the recalls where kinda scary (brake recall - damn anti-locks sounded like a jackhammer).
I gave it to my uncle who is a good mechanic, so he will probably fix it up and give it to someone to drive another 100,000.