SCIENCE FICTION MOVIE exploring probabilities of Lifeforms on Europa - Galileo spacecraft exosphere find

Science Fiction Movie project is on ICE... The Galileo spacecraft confirmed evidences that Europa, Ganymede, and Callisto all have a thin atmospheric layer known as a 'surface-bound exosphere'. And all this follows Sir Arthur C. Clarke's earlier statements on Europa; "I'm beginning to think the unthinkable." Science Fiction fans and writers just loves to think the unthikable, starting with the proverbial questionning maxim: What if...there was life on Europa