Liberal alien flick The Day the Earth Stood Still comes out on DVD next Tuesday, and we've got an exclusive clip from the extras. It's all about how the movie production was totally carbon neutral.

You may not have liked this eco-conscious remake of the 1950s classic anti-nuke movie, but it's hard to deny the good intentions that went into making it the first green film to come from Fox. The studio has pledged to be entirely carbon neutral by next year, and Day the Earth Stood Still was their first effort. In this clip you see all the production staff talking about something how they turned the normally-wasteful filmmaking process into one that was completely green.

Pretty interesting stuff, and fitting for a movie about aliens who are really pissed off about how humans have treated the ecosystem on Earth. Watch for the DVD on April 7.