Nice scene with Luna. Very funny.
Harry and Bruce were a bit over the top, but still funny (well-done slapstick). But newborns don't smile and would not be able to sit up to be up on her daddy's head. I did like Superman's getting peed on. Well-deserved payback for tossing an infant 7 feet in the air; even if his reflexes allow him to catch her every time, she will still likely end up a victim of shaken-baby syndrome. Her neck muscles can't absorb those kind of shocks for quite a while.