Mx-player is very good application of videos and movie watch on your android mobiles, This application is really popular and the playstore and it is widely used. It supports so many video formats and so many error free application makes this application awesome to use and easy.
I am using mx-player since morethan 4 years and very happy to use it, even my friends are used too. One problem is that in my mobile that not able to play highly hd videos and sometimes it audio not able to play, so it is really need to upgrade by mx-player developer else where this is really good application to use on android mobile.