[Hannah LS (OP)]

Malcolm asks:

After watching the Sony film 'Passengers' and seeing what happens to the swimming pool after loss of gravity, I would like to know what happens to an air bubble inside a mass of water when there is no reference to where upwards is?

Any thoughts?

[Colin2B]

it will stay where it is because no force to make it 'float', but it might expand a little depending on depth due to reduction in pressure.

[evan_au]

Here is a video created on the ISS of astronauts playing with their food.
One astronaut grows a large droplet of water, with bubbles inside, while others bombard it with M&Ms...