I know this may actually be a chemistry question, but I don't know where else to ask.
When I have a soda plastic bottle, I turn it upside down so the soda fills the empty space, and bubbles start growing on the walls of the plastic.
So, why does this happen? I can think of something like a film forming around the empty space, and it reacts with the liquid, if so, what is it? why does it react that way?