Hello pietia336,
While languages and accessibility features supported by a movie or TV show can vary by region, we'd like to confirm some information to help us better assist you. Just to confirm, is the issue only with that specific movie, or does it happen with other content as well?
Do the expected options appear when trying to select the default audio language in Settings currently?
That information will help us plan how to proceed.
Please also check out the following link, which has some information about subtitles or languages for videos, and may help: Change subtitles or languages for videos in the Apple TV app or iTunes Store
On iPhone, iPad, or iPod touch
1. While watching a video, tap the screen to open the playback controls.
2. Tap the More Controls button 
.
3. Choose Subtitles or Languages.
4. Pick the subtitles or audio language that you want.
Learn how to turn on CC or SDH by default
To choose the audio languages that are downloaded with your videos, open the Settings app, scroll down and tap TV, then tap Languages. Tap Add Language and choose the languages that you want to add.
Thank you!
