I saw that trailer too Bradbury...
When it comes to movies that are adaptations of books, or just remakes of books, I don't even bother to view the movie as an adaptation. Most of the time they aren't anyway, so there's no point in it.
In the case of "I, Robot", I'm just gonna watch it as a movie about robots and Will Smith gettin' Jiggy wit' dem. That's it. It's not an adaptation. That's my mantra. That should increase the viewing acceptibility of the film by a bit. Provided that the film, by itself and not as an adaptation, is actually entertaining.
And for Martain Chronicles, I was thinking Jackie Chan. He's the more likable martial artist... at least he's more Americanized than Jet Li.