I found any foreign language to be equally difficult with regard to listening. After some training I can make out syllables and generally spell things out using a romanized form, but I'm still hit or miss on tying what's said to what it means in any language other than English.

Chinese is probably the one I understand (aside from English) the best when it's spoken. Even though I had three years of Spanish in high school.

Edit: I've seen quite a bit of Studio Ghibli, but I don't think I've seen that one...