[Help] 为何听力一直无法突破

来美也三年了，感觉listening compehension being improved. 但是当我看电影或者追剧的时候，if there is no subtitle, I cannot keep up at all. Yestoday watched Incredible 2 on Netflix, for some reason, there is only Spanish subtitle, I found out I only got about 30%conversation. So frustrated!
不知道有什么办法能提高。