MXPlayer: MXPlayer is quite possibly the best video player for Android tablets. It packs in lots of features and can play a bunch of different video file formats (avi, mkv, divx and more).
IMDb: Who’s that guy? Where’s he from? Should I even watch this movie? Solve all your movie questions with Android’s official IMDB app. It’s basically IMDB’s website optimised for your phone, which is a good thing in this case. Free.
Kindle: Just because you don’t own a Kindle doesn’t mean you shouldn’t be buying Kindle ebooks — especially when Amazon has an Android app that’s dead simple to use. The ebook wars aren’t quite over, but no one will judge you for siding with Amazon. Free.