The Netflix may help (but I'm not sure how effective it is as the only method). We used the DVD version with our daughter. She was very young, so she enjoyed watching the same movie again and again and again ...

Watch a movie in the other language with subtitles in your languages, then watch the movie in the other language with subtitles in the other language, and then watch the movie in the other language without subtitles.

As you get more use to the language, you can try to skip the first (and second) version.