Talk about a secret cameo!
The shot, in which Renner cradles a constituent's month-old infant, actually stars his very own little baby, 9-month-old Ava!!
"They brought the baby and they were hanging around with (Renner's) mother. I couldn't get his mother to be in the scene. But I said, 'Why don't you put the baby in the scene right now?'"
We can't wait to look for him when we finally get to see this thing!!