I think the biggest drawback to making a movie like this is having it be stuck under the Mouse House Label, it can't be too edgy, can't be too violent, actually it has to be kid friendly.
makes perfect sense...but the other night I remembered that "The Black Hole", maketed to kids in the 1980's, actually had a pretty dark plot to it...even if they had cutesy robots.
I looked it up online and apparently Tron Legacy had a budget of 170 million.
Ouch!
Seems like movies are increasingly "hit or miss" these days...must be stressing out studio chairs!