This film, Inconvenient Truth has nothing on the original Japanese Sci-Fi 56' "Warning from Space." It's nice to have this film in an original language English, because the Japanese translation gets lost a little.
I'm not sure replacing Keizo Kawasaki and Toyomi Karita helped Gore's film any. In the end it's just another rehash the 1956 film with Al Gore warning the people of earth instead of Star shaped aliens from outer-space.
Come to think of it, perhaps it's all pretty much the same as the original.