Movies is a free Themoviedb client for Android.
Source code is available on Github:
https://github.com/michaelbel/movies
Movies uses TMDb data and images under the license CC BY-NC 4.0:
https://creativecommons.org/licenses/by-nc/4.0
Movies uses the TMDb API, but is not approved or certified by TMDb:
https://themoviedb.org/documentation/api/terms-of-use