This is from a website specifically devoted to questions & answers about Disneyland Paris (but not a Disney site).
What language do they use?
The park's official languages are French and English, and signs are multilingual, as are the guidebooks. Hotel reception desks and park information points should be able to attend you in French, English, German, Spanish, Italian and now Dutch. However, the simplest answer appears to be to use whatever language you want! Cast members have flags on their name-tags which should give you an indication of which languages they are fluent in. When we [Tom] first arrived, we tried to use our meagre French (poorly remembered from school). Unfortunately, the cast- members would assume we were French and would rattle on to us in French leaving us totally bewildered! We soon found it easier just to speak in English. Note that this is exactly the opposite in Paris where we found we were made far more welcome if we just tried to make ourselves understood in French initially
http://www.faqs.org/f...-paris/#ixzz0gOcYwWX8