I've always been afraid of video games - not afraid that I wouldn't like them, but that I would like them too much, and that after mere seconds in front of any particularly bright and absorbing game, I would abandon all ambition, turn into a mouth-breathing zombie, and develop a wide, sofa-shaped rear end.
With any hallucinations, if you can do functional brain imagery while they're going on, you will find that the parts of the brain usually involved in seeing or hearing - in perception - have become super active by themselves. And this is an autonomous activity; this does not happen with imagination.
I suppose 'My Hollywood' is only as politically meaningful as it is deeply inside the least powerful of its characters. I wanted it to reveal scenes of subtle exploitation, odd instances of accidental power and challenges to decency specific to its time, but also impulses of generosity that transcend our particular era's messes.