Look at his reaction. He's like "Oooooh shit." I can't read if that is a "Oops, I'm sorry, didn't mean that" or "Oops, I got busted". He doesn't seem to like that there were cameras around. I think it was either unintentional or subconscious. His interest appeared to be directed elsewhere at that moment.
In any case, those are his kids. It's not secretly some child-wedding thing. Here pic) is him with his wife and two kids (older lady is some actress from the movie).