This is not really an App - but ...
If you want to put your own movies (or movies without DRM) then a super program to get for your Windows computer is the DVD Catalyst - at
http://www.tools4movies.com/ - yes, its a paid program, but it is also half price off right now. Next, to go with your converted movies, get their Movie Streaming server -
http://www.tools4movies.com/2011/11/...-guide-part-2/
Results: You can convert your movies to a Kindle Fire compatible format (.mp4) and then either sideload them or do your own streaming while at home.
Plus, they provide great technical support!