yeah, i didn't really like the way that the kid did such a fast change in his attitude going so far as to not care about the lives of his own parents. There is justification for this indicated in the story, but mostly i thought it went too fast.
If it lead to more original super-villains i suppose i could get on board but I really didn't think this movie was all that great.
I actually thought the fast pace made it more enjoyable. Perhaps I'm just sick of the super long and plodding DC movies.