Why did Nolan.....Spoiler
show Christian Bale at the restaurant table at end of the film? I don't think the film needed it - just Cane's nod and smile would have sufficed- it insults audience intelligence.
My preference would have been for Michael Cane to look up only and then leave the rest for our interpretation.
I think Bale was only in because Nolan wanted to show he'd made a new life with Hathaway.