Meh. I don't know. Maybe because it's tough to believe M. Night Shyamalan is capable of making a normal movie anymore. Or maybe it's because it seems like a gimmick setting the movie on a future Earth that's completely alien to us as opposed to just an alien planet. Or maybe it's that absurd accent Will Smith uses, but despite how 'pretty' and 'big' it looks, there's something just not clicking with After Earth. Tom Hanks carried Castaway almost entirely on his own. But Jaden Smith is not Tom Hanks. And it looks like it's basically just him the entire friggin' movie.
I guess if you're the one person left alive who didn't see Avatar the flora and animal designs may seem interesting. But I'm still not sold on this one yet. Not until I learn that it all actually takes place in a zoo on Mars. Or that water actually kills Will Smith. C'mon, twist-end me M. Night, I dare you.