The film is very, very well thought out, however it didn't show us much that they were oxygen breathers. Overall fantastic, really believable. Can i also mention that the visual effects by E-Magic Entertainment Studios are brilliant. Plus the alien is really, really well thought out.The shaky camera makes the whole thing really, really believable. I have heard that it took E-Magic around a month, because the alien design took 3 weeks. So in summary, this is a great 7 minutes film, that your children can watch, providing you have seen it first, good story and it makes me want to know more. I really hope that there's a second Unfamiliar Descent. The only flaw is the age rating,I think its over cautious, I think it should be a 12 or even a PG