Playing Downloaded movie from the Play Store on another player

[2120SoMichiganAve]

Trying to play a movie downloaded from the store on MX player pro; however, I simply cant find the movie to play ! It does play on the standard app. Clearly, new to Nexus 7 and tablets - thanks for any assistance.

 

[wunderbar]

It won't work. movies purchased or rented from Google Play can only be played in the play video app.