It was written on Cassidy's airplane in Flyboys, above the eagle:
See the ultra tiny red writing above the circle with the eagle? That's it. I thought it was "Je vous tout". I thought it might be idiomatic. But "I want everything" would fit with the character!
I was actually able to understand a little of the French dialogue. At least I could get the message. "L'enfants", "oncle", "la guerre", "par Avion" and a few others. So with hand gestures and an occasional word or two, I might actually have been able to make do in Rawling's situation in the movie.
We Americans... we really should learn a second language along with our own from the get-go.