If we assume science fiction films, unless stated otherwise, are not documentaries, then we have nothing to debate. We can only shrug our shoulders and say it didn't happen like that. That works fine for personal visions of what a universe should be like but everyone needs to have the same common ground when you enter into a discussion with another person about what we should take away from what we've seen in a movie or show. If anything I prefer to wonder why things happened the way they did in a film rather than assume its wrong and make up my own version of events. Except for the Star Wars EU. That I prefer not to even try reconciling.