When Aliens Attack
movie

Released September 12, 2011
Overview
What if an extra-terrestrial force attacked Earth? What might that look like and how will the people of Earth respond? Consulting a cast of world-renowned scientists, survival experts and defense experts, National Geographic explores this frightening scenario. Experts reveal what could motivate alien invaders to attack Earth, and speculate on how the attack might play out, the strategy alien invaders might use, and the most effective ways for humans to respond.
Cast

James Lurie
as
Narrator (voice)

Seth Shostak
as
Self - SETI Institute

Nick Pope
as
Self - U.K. Ministry of Defense
- no image
Brian De Toy
as
Self - Director of Defense Studies, West Point

Stephen Hawking
as
Self - Theoretical Physicist (archive footage)
- no image
Paul Springer
as
Self - USAF Air Command and Staff College
- no image
Travis Taylor
as
Self - Physicist & Author
- no image
Bob Boan
as
Self - Co-Author, Alien Invasion: How to Defend Earth
- no image
Michael Michaud
as
Self - Author, Contact with Alien Civilizations
- no image
Paul Parsons
as
Self
- no image
John Ringo
as
Self - Author, Live Free or Die
- no image
Mark Moffett
as
Self - Author: Adventures Among Ants