Whenever I view a trailer or video on flixtster, the "downloading circle" is showing all the time for me.
Other video play items seem ok such as BBC Iplayer etc as far as I can see.
You may need to uninstall and reinstall the Flixster app, and/or make sure you are using the newest version of the app (be sure to check for updates). We hope this helps!
-- Jesse with TriplePoint for Digital Entertainment Group