Movie Glasses

I have this idea about watching movies. it was in my dream last night. People had 3d type glasses and they were like the glasses in National treasure. But when one part of the lense was put over it would make the movie different. The soundtrack would be different or the people would look different. Maybe there is a way to make watching movies like this. Or to have hidden clues in movies. And make the movie watching experience interactive like this. Or have the movie be one way watching the movie without glasses and then another way with glasses. Ooooo. This is cool. How can I get this to work.