One may have a better look at Gort the alien robot in the new Day The Earth Stood Still International movie trailer:

The Day The Earth Stood Still International Trailer

Gort the robot rules: don’t even think of bugging him! If you’d ever dare to bug him then he would stare at you like you were a goat! So, better keep quiet in his presence, after all, even Klaatu (Keanu Reeves) seems to fear him…
:)