Bilingual on any resume can only improve your chances of a good job. I always mention I am fluent in Spanish when I apply for stuffs ;D French wouldn't be a bad idea for you since you already have working knowledge and some basics down.

I haven't tried green screen, mostly because motion capture data doesn't require any actual "filming'. It's just straight data sent to the computer that you then apply to model skeletons/control rigs, then go from there.