So, just only because it is cgi we need to act like it's untouchable god's work or what? Every thing need it's criticism, it helps to do things better for next time, only if someone actually see it and think about it. But the fact is, that prosthetics should never cause a similar problem with the Alien tubes like this, right? Ok, then why do it harder by showing us how elegant Alien is, even when he descending from ladder by using cgi effects? I mean, cgi should help to provide something that is normally impossible to do, not to cause additional problems, and that is my personal reason why i hate this specific clip, not the entire movie. By the way, I play games and watch movies in Blue-Ray quality, so I demand cgi that has a balls for that, some of us seen this clip on their small screens, is there anyone who can imagine this fault in big screen? Like I can't understand why the same fault with tubes end in the final version, this is beyond me.