Quote:
I think the major reason I dislike Sci-Fi in general is the lack of imagination, most of them dress aliens up but they still have 2 eyes a nose and a mouth, yawn.


Two problems I can think of going to true "alien" aliens in SciFi movies that use them.

1. Actors. Change the alien too much from a humanoid shape, and you move more towards CG stuff. And we all know how much we love CG acting (JarJar).

2. If the aliens don't look somewhat human, most people have a hard time associating with them.