Netflix offers the movie "Formosa Betrayed" on its mail-DVD rental as well as instant view if you have an internet connection.
If you are still not in the loop regarding this movie, we'd recommend reading Tim Maddog's blog post on Taiwan Matters.
Since Netflix is currently offering a 1-month free trial service, you can see the movie for free. Just sign up on the website netflix.com.
While you are at it, why don't you check some more movies to understand similar oppression which nations other than Taiwan also experienced.
Ireland: The Wind that Shakes the Barley
Ireland: Michael Collins
Jews in Belarus: Defiance