<p>gizzy, I don’t think any foreign language is especially helpful for a career in U.S. film production. I suggest being well educated (and especially having a chance to live and study in a different country) is very important to the artist you one day become, but the language will not matter much if at all in terms of future work–if you intend to work in the US film industry.</p>
<p>Since you get to choose, why not select a country that calls out to you. Perhaps do research on which country (France, Germany, Spain?) has an active current and vital film-making community? But in the end, I suggest this is more a decision that will add to the depth of your education and not so much add to your future film work prospects.</p>