I didn't like that nolan decided to replace bane's back story with Talia.
In the comics bane look to Ra's as a father figure so it made sense that in this movie he was Ra's al ghul's son. Bane was born in prison due to his father's deeds and escaped prison, but they decided to have Talia fill that row which I thought killed the story a bit.
Sure it made a twist to the story (for those that didn't know Talia was going to be in the movie), but I didn't like it. Bane holding batman and breaking his spine was cool though, it was a given they were going to put that in but still made me smile.