If I recall correctly, this movie, when shown "flat" on TV has some perplexing moments when characters inexplicably move objects toward and away from the camera, apparently for no reason other than to create a 3D effect, like in the old Second City TV skit "Doctor Tongue". If you're looking for a big budget aliens attacking flick like Independence Day in 3D, you'll be disappointed. It's a little more cerebral, creating atmosphere and suspense instead of thrills. In order to appreciate this kind of a movie, you have to be willing to work with it.