There was a movie with a green blurry ghost (i think it was green), saw it years back, I know what you want to answer, but sadly, its not the famous movie "The Entity". Two scenes i can remember...
There is a 'gadget' for sale, where you have to think about something and then the thingy asks 10 (or so) questions, and tries to guess wht you are thinking. Now, i have heard that there is a online...