I'm looking for an app to play movies. The idea is that the screen that plays the movies is displayed via projector, but I could still select movies from a connected tablet. Also, there needs to be absolutely no lag between pressing a movie and it being played on the projector. I'm assuming something this specific isn't available so could any sorta guess how much this might set me back? It doesn't need to look fancy or anything just to do the simple jobs specified.