http://www.movieline.com/movieline.shtml?style=standard&I=world&II=reviews&V=0

It begins:

What price Scientology? Who cares? One could only hope that Battlefield Earth is, as many paranoid trogs would have it, a subliminal recruitment for the L. Ron Hubbard religion/carpetbagging operation, because then it might have some purpose. Otherwise, it is a brain-baking travesty, a Hollywood laughingstock that must inevitably damn at least some of the careers wrapped up in it. It's difficult to imagine John Travolta, whose personal project this is in one way or another, getting away with his reputation and price tag intact. As a Rasta-coiffed alien in six-finger fur gloves and big Gene Simmons boots prone to drinking what looks like Gatorade at his local alien gin mill, Travolta utters dialogue only Lost in Space's Dr. Smith could get away with, including multiple exclamations about Earth being "this horrid planet!"