What does "non-USA" format on a DVD mean?

[Lila]

I want to buy this German movie called Kokowääh but the only copy I can find is on Amazon and it says "non-USA format." does that mean it won't work with my laptop? Doesn't have English subtitles? I'm Canadian but I'm guessing non-USA automatically means non-Canadian.

http://www.amazon.com/gp/aw/d/B004N6244M/ref=aw_ls__1?colid=2FEQFJX733EV4&coliid=I2R25X3EXTMHCW