i downloaded Warrior on Apple TV and it's playing in French

If you are in a country with a significant French speaking population (e.g. Canada), then you may find that buy TV shows from the iTunes Store are not always in their original language, but may be dubbed. Most often, there would be a choice to get either language version. You then can’t change the language anymore after the buy-moment, as the editions are separate Store items.

If you accidentally purchased the wrong language edition, then please contact the iTunes Store staff to help undo the purchase, and instead make a new purchase for the intended edition.