I recently received a dvd of Nynke from a Netherland company. The add for the dvd said that it was in Netherlandish (aka by most as Dutch) with English subtitles, which went against my knowledge that the movie is actually in Frisian. To my delight it is in Frisian with some Netherlandish. However, the subtitles were not in English at all, but only in Netherlandish. I am learning Frisian, but as an American living in the United States, my command of this language is weak at best. Having said all of this, I thoroughly enjoyed this movie. It was easy enough to understand the jist of the movie; although I'm sure it is far more complex and interesting if you do understand Netherlandish.
If you can see it with subtitles in your own language, then I strongly recommend it. Oant skrieuwen!